J/A+A/706/A95 PHANGS-HST Halpha Nebulae Catalogue (Barnes+, 2026)
The PHANGS-MUSE/HST-Hα nebulae catalogue.
Parsec-scale resolved structure, physical conditions, and stellar associations
across nearby galaxies.
Barnes A.T., Chandar R., Kreckel K., Belfiore F., Pathak D., Thilker D.,
Leroy A.K., Groves B., Glover S.C.O., McClain R., Amiri A., Bazzi Z.,
Boquien M., Congiu E., Dale D.A., Egorov O.V., Emsellem E., Grasha K.,
Gonzalez-Lobos J., Henny K., He H., Indebetouw R., Lee J.C., Li J.,
Liang F.-H., Larson K., Maschmann D., Meidt S.E., Mendez-Delgado J.E.,
Neumann J., Pan H.-A., Querejeta M., Rosolowsky E., Sarbadhicary S.K.,
Scheuermann F., Ubeda L., Williams T.G., Weinbeck T.D., Whitmore B.,
Wofford A., the PHANGS collaboration
<Astron. Astrophys. 706, A95 (2026)>
=2026A&A...706A..95B 2026A&A...706A..95B (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Morphology ; Spectroscopy
Keywords: HII regions - ISM: structure - galaxies: star clusters: general -
galaxies: star formation
Abstract:
We present the PHANGS-MUSE/HST-Hα nebulae catalogue, comprising
5177 spatially resolved nebulae across 19 nearby star-forming galaxies
(D<20Mpc), based on high-resolution HST Hα imaging
homogenised to a fixed 10pc resolution. In synergy with PHANGS-MUSE
spectroscopy, we robustly classify 4882 HII regions, derive electron
densities for 2544, and provide consistent sizes, luminosities,
morphologies, and emission-line diagnostics. Structural complexity is
quantified via hierarchical segmentation, highlighting a large
fraction of HII complexes in galactic centres. A luminosity-size
relation calibrated on the HST sample is applied to 30790 MUSE
nebulae, recovering sizes down to ∼1pc. Cross-matching with
PHANGS-HST stellar associations links 3349 nebulae to powering
populations, with median ages ∼3Myr and masses 104-105M☉.
This dataset provides the largest parsec-scale resolved benchmark to
date for connecting ionised nebulae, stellar populations, and ISM
conditions across nearby galaxies.
Description:
The catalogue contains 5467 entries, one per nebula, of which 5177
constitute the primary science sample after applying edge and
contamination flags. Columns include celestial coordinates, fluxes,
luminosities, morphological parameters, emission-line measurements,
and derived nebular quantities. Cross-matched stellar association
properties from PHANGS-HST catalogues are also included. Ancillary
segmentation masks and smoothed Hα maps for each galaxy are
provided as separate files.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
neb_cat.dat 2449 5467 Main PHANGS-MUSE/HST Halpha Nebulae Catalogu
list.dat 111 38 List of fits maps and masks
maps/* . 19 Hα 10pc maps fits files
masks/* . 19 Masks fits files
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Byte-by-byte Description of file: neb_cat.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Galaxy Galaxy name (galaxy_name)
9- 12 I4 --- Region Region ID (region_ID)
14 I1 --- fEdgeHST Flag=1 if region lies on HST image
edge (flagedgehst)
16 I1 --- fTouchHST Flag=1 if region touches segmentation
boundary (flagtouchhst)
18- 24 A7 --- fManualHST ?=- Manual classification flags
(visual checks) (flagmanualhst)
26 I1 --- fEdgeMUSE Flag=1 if region lies on MUSE cube
edge (flagedgemuse)
28 I1 --- fStarMUSE Flag=1 if affected by bright star in
MUSE data (flagstarmuse)
30- 44 F15.11 deg RAdeg Right ascension (J2000) of region
centroid (ra)
46- 60 F15.11 deg DEdeg Declination (J2000) of region
centroid (dec)
62- 76 F15.11 deg RApdeg Hα pixel peak right ascension
(J2000) (ra_peak)
78- 92 F15.11 deg DEpdeg Hα pixel peak declination
(J2000) (dec_peak)
94- 108 F15.11 deg RAMdeg MUSE right ascension (J2000) of
MUSE centroid (ra_muse)
110- 124 F15.11 deg DEMdeg MUSE declination (J2000) of MUSE
centroid (dec_muse)
126- 135 F10.8 --- rR25Deproj Deprojected galactocentric radius,
in R25 units (rR25deproj)
137- 146 F10.8 --- rrefFdeproj Deprojected galactocentric radius,
in Re units (rreffdeproj)
148- 157 F10.8 rad phiDeproj Deprojected azimuthal angle within
host galaxy (phi_deproj)
159 I1 --- Env [1/9] Environment flag (1)
161- 171 F11.8 arcsec+2 Areacirc Circularized area (areacircarcsec2)
173- 181 F9.7 arcsec Radcirc Circularized radius (arcsec)
(radiuscircarcsec)
183- 190 F8.4 pc Radcircpc Circularized radius (pc)
(radiuscircpc)
192- 203 F12.9 arcsec+2 Area2 Second-moment area of region
(areamomarcsec2)
205- 214 F10.8 arcsec amaj2 Second-moment major axis
(radiusmajormom_arcsec)
216- 225 F10.8 arcsec bmin2 Second-moment minor axis
(radiusminormom_arcsec)
227- 234 F8.3 deg PA2 [] Position angle (moments-based)
(radiusposangle_deg)
236- 245 F10.8 arcsec Rad Moment-based radius (arcsec)
(radiusmomarcsec)
247- 255 F9.5 pc Radpc Moment-based radius (pc)
(radiusmompc)
257- 266 F10.6 pc Raddeconv ?=- Deconvolved moment-based radius
(radiusmomdeconv_pc)
268- 277 F10.6 pc RadStr ?=- Stromgren radius
(radiusstromgrenpc)
279- 288 F10.6 pc RadcircpcM Circularized radius (pc; PHANGS-MUSE)
(radiuscircpc_muse)
290- 292 I3 --- ComplexScore Morphological complexity score
(Sect. 3.2) (complexity_score)
294- 305 E12.6 mW/m2 FHaHST HST Hα integrated flux (raw,
uncorrected) (halpha_flux)
307- 318 E12.6 mW/m2 e_FHaHST Error on HST Hα flux
(halphafluxerr)
320- 331 E12.6 mW/m2 FHaHSTMax Maximum pixel flux in HST Hα map
(halphafluxmax)
333- 344 E12.6 mW/m2 FHaHSTMin Minimum pixel flux in HST Hα map
(halphafluxmin)
346- 357 E12.6 mW/m2 FHameanHST Mean pixel flux in HST Hα map
(halphafluxmean)
359- 370 E12.6 mW/m2 FHacorrHST Extinction-corrected HST Hα flux
(halphafluxcorr)
372- 383 E12.6 mW/m2 e_FHacorrHST Error on extinction-corrected HST
Hα flux (halphafluxcorr_err)
385- 396 E12.6 mW/m2 FHa MUSE Hα integrated flux
(PHANGS-MUSE) (halphafluxmuse)
398- 409 E12.6 mW/m2 FHb MUSE Hβ integrated flux
(PHANGS-MUSE) (hbetafluxmuse)
411- 422 E12.6 mW/m2 FOIII5007 MUSE [O III] λ5007 flux
(PHANGS-MUSE) (oiii5007fluxmuse)
424- 435 E12.6 mW/m2 FNII6584 MUSE [N II] λ6584 flux
(PHANGS-MUSE) (nii6584fluxmuse)
437- 448 E12.6 mW/m2 FSII6716 MUSE [S II] λ6716 flux
(PHANGS-MUSE) (sii6716fluxmuse)
450- 461 E12.6 mW/m2 FSII6731 MUSE [S II] λ6731 flux
(PHANGS-MUSE) (sii6731fluxmuse)
463- 474 E12.6 mW/m2 FSIII9069 MUSE [S III] λ9069 flux
(PHANGS-MUSE) (siii9069fluxmuse)
476- 487 E12.6 mW/m2 FOI6300 MUSE [O I] λ6300 flux
(PHANGS-MUSE) (oi6300fluxmuse)
489- 500 E12.6 mW/m2 FNII5755 ?=- MUSE [N II] λ5755 flux
(PHANGS-MUSE) (nii5755fluxmuse)
502- 513 E12.6 mW/m2 FHeI5876 MUSE He I λ5876 flux
(PHANGS-MUSE) (hei5876fluxmuse)
515- 526 E12.6 mW/m2 FSIII6312 ?=- MUSE [S III] λ6312 flux
(PHANGS-MUSE) (siii6312fluxmuse)
528- 539 E12.6 mW/m2 FOI6363 MUSE [O I] λ6363 flux
(PHANGS-MUSE) (oi6363fluxmuse)
541- 552 E12.6 mW/m2 FOII7319 MUSE [O II] λ7319 flux
(PHANGS-MUSE) (oii7319fluxmuse)
554- 565 E12.6 mW/m2 FOII7330 MUSE [O II] λ7330 flux
(PHANGS-MUSE) (oii7330fluxmuse)
567- 578 E12.6 mW/m2 e_FHa Error on Hα flux (PHANGS-MUSE)
(halphafluxerr_muse)
580- 591 E12.6 mW/m2 e_FHb Error on Hβ flux (PHANGS-MUSE)
(hbetafluxerr_muse)
593- 604 E12.6 mW/m2 e_FOIII5007 Error on [O III] λ5007 flux
(PHANGS-MUSE)
(oiii5007fluxerr_muse)
606- 617 E12.6 mW/m2 e_FNII6584 Error on [N II] λ6584 flux
(PHANGS-MUSE) (nii6584fluxerr_muse)
619- 630 E12.6 mW/m2 e_FSII6716 Error on [S II] λ6716 flux
(PHANGS-MUSE) (sii6716fluxerr_muse)
632- 643 E12.6 mW/m2 e_FSII6731 Error on [S II] λ6731 flux
(PHANGS-MUSE) (sii6731fluxerr_muse)
645- 656 E12.6 mW/m2 e_FSIII9069 Error on [S III] λ9069 flux
(PHANGS-MUSE)
(siii9069fluxerr_muse)
658- 669 E12.6 mW/m2 e_FOI6300 Error on [O I] λ6300 flux
(PHANGS-MUSE) (oi6300fluxerr_muse)
671- 682 E12.6 mW/m2 e_FNII5755 ?=- Error on [N II] λ5755 flux
(PHANGS-MUSE) (nii5755fluxerr_muse)
684- 695 E12.6 mW/m2 e_FHeI5876 ?=- Error on He I λ5876 flux
(PHANGS-MUSE) (hei5876fluxerr_muse)
697- 708 E12.6 mW/m2 e_FSIII6312 ?=- Error on [Si II] λ6312 flux
(PHANGS-MUSE)
(siii6312fluxerr_muse)
710- 721 E12.6 mW/m2 e_FOI6363 Error on [O I] λ6363 flux
(PHANGS-MUSE) (oi6363fluxerr_muse)
723- 734 E12.6 mW/m2 e_FOII7319 Error on [O I] λ7319 flux
(PHANGS-MUSE) (oii7319fluxerr_muse)
736- 747 E12.6 mW/m2 e_FOII7330 Error on [O I] λ7319 flux
(PHANGS-MUSE) (oii7330fluxerr_muse)
749- 760 E12.6 mW/m2 FHacorr Extinction-corrected Hα flux
(PHANGS-MUSE) (halphafluxcorr_muse)
762- 773 E12.6 mW/m2 FHbcorr Extinction-corrected Hβ flux
(PHANGS-MUSE) (hbetafluxcorr_muse)
775- 786 E12.6 mW/m2 FOIII5007corr Extinction-corrected [O III]
λ5007 flux (PHANGS-MUSE)
(oiii5007fluxcorr_muse)
788- 799 E12.6 mW/m2 FNII6584corr Extinction-corrected [N II]
λ6584 flux (PHANGS-MUSE)
(nii6584fluxcorr_muse)
801- 812 E12.6 mW/m2 FSII6716corr Extinction-corrected [S II]
λ6716 flux (PHANGS-MUSE)
(sii6716fluxcorr_muse)
814- 825 E12.6 mW/m2 FSII6731corr Extinction-corrected [S II]
λ6731 flux (PHANGS-MUSE)
(sii6731fluxcorr_muse)
827- 838 E12.6 mW/m2 FSIII9069corr Extinction-corrected [S III]
λ9069 flux (PHANGS-MUSE)
(siii9069fluxcorr_muse)
840- 851 E12.6 mW/m2 FOI6300corr Extinction-corrected [O I]
λ6300 flux (PHANGS-MUSE)
(oi6300fluxcorr_muse)
853- 864 E12.6 mW/m2 FNII5755corr ?=- Extinction-corrected [N II]
λ5755 flux (PHANGS-MUSE)
(nii5755fluxcorr_muse)
866- 877 E12.6 mW/m2 FHeI5876corr Extinction-corrected He I
λ5876 flux (PHANGS-MUSE)
(hei5876fluxcorr_muse)
879- 890 E12.6 mW/m2 FSIII6312corr ?=- Extinction-corrected [S III]
λ6312 flux (PHANGS-MUSE)
(siii6312fluxcorr_muse)
892- 903 E12.6 mW/m2 FOI6363corr Extinction-corrected [O I]
λ6363 flux (PHANGS-MUSE)
(oi6363fluxcorr_muse)
905- 916 E12.6 mW/m2 FOII7319corr ?=- Extinction-corrected [O II]
λ7319 flux (PHANGS-MUSE)
(oii7319fluxcorr_muse)
918- 929 E12.6 mW/m2 FOII7330corr ?=- Extinction-corrected [O II]
λ7330 flux (PHANGS-MUSE)
(oii7330fluxcorr_muse)
931- 942 E12.6 mW/m2 e_FHacorr Error on corrected Hα flux
(PHANGS-MUSE)
(halphafluxcorrerrmuse)
944- 955 E12.6 mW/m2 e_FHbcorr Error on corrected Hβ flux
(PHANGS-MUSE)
(hbetafluxcorrerrmuse)
957- 968 E12.6 mW/m2 e_FOIII5007corr ?=- Error on corrected [O III]
λ5007 flux (PHANGS-MUSE)
(oiii5007_fl uxcorrerr_muse)
970- 981 E12.6 mW/m2 e_FNII6584corr ?=- Error on corrected [N II]
λ5007 flux (PHANGS-MUSE)
(nii6584fluxcorrerrmuse)
983- 994 E12.6 mW/m2 e_FSII6716corr ?=- Error on corrected [S II]
λ6716 flux (PHANGS-MUSE)
(sii6716fluxcorrerrmuse)
996-1007 E12.6 mW/m2 e_FSII6731corr ?=- Error on corrected [S II]
λ6731 flux (PHANGS-MUSE)
(sii6731fluxcorrerrmuse)
1009-1020 E12.6 mW/m2 e_FSIII9069corr ?=- Error on corrected [S III]
λ9069 flux (PHANGS-MUSE)
(siii9069_fl uxcorrerr_muse)
1022-1033 E12.6 mW/m2 e_FOI6300corr ?=- Error on corrected [O I]
λ6300 flux (PHANGS-MUSE)
(oi6300fluxcorrerrmuse)
1035-1046 E12.6 mW/m2 e_FNII5755corr ?=- Error on corrected [N II]
λ5755 flux (PHANGS-MUSE)
(nii5755fluxcorrerrmuse)
1048-1059 E12.6 mW/m2 e_FHeI5876corr ?=- Error on corrected He I
λ5876 flux (PHANGS-MUSE)
(hei5876fluxcorrerrmuse)
1061-1072 E12.6 mW/m2 e_FSIII6312corr ?=- Error on corrected [S III]
λ6312 flux (PHANGS-MUSE)
(siii6312_fl uxcorrerr_muse)
1074-1085 E12.6 mW/m2 e_FOI6363corr ?=- Error on corrected [O I]
λ6363 flux (PHANGS-MUSE)
(oi6363fluxcorrerrmuse)
1087-1098 E12.6 mW/m2 e_FOII7319corr ?=- Error on corrected [O II]
λ7319 flux (PHANGS-MUSE)
(oii7319fluxcorrerrmuse)
1100-1111 E12.6 mW/m2 e_FOII7330corr ?=- Error on corrected [O II]
λ7330 flux (PHANGS-MUSE)
(oii7330fluxcorrerrmuse)
1113-1124 E12.6 km/s VHa Hα velocity (PHANGS-MUSE)
(halphavelmuse)
1126-1137 E12.6 km/s e_VHa Error on Hα velocity
(PHANGS-MUSE) (halphavelerr_muse)
1139-1150 E12.6 km/s sigmaHa Hα velocity dispersion
(PHANGS-MUSE) (halphasigmamuse)
1152-1163 E12.6 km/s e_sigmaHa Error on Hα velocity dispersion
(PHANGS-MUSE) (halphasigmaerr_muse)
1165-1176 E12.6 km/s VNII6584 Velocity on [N II] λ6584
(PHANGS-MUSE) (nii6584velmuse)
1178-1189 E12.6 km/s e_VNII6584 Error on velocity of [N II]
λ6584 (PHANGS-MUSE)
(nii6584velerr_muse)
1191-1202 E12.6 km/s sigmaNII6584 Velocity dispersion of [N II]
λ6584 (PHANGS-MUSE)
(nii6584sigmamuse)
1204-1215 E12.6 km/s e_sigmaNII6584 Error on velocity dispersion of [N II]
λ6584 (PHANGS-MUSE)
(nii6584sigmaerr_muse)
1217-1228 E12.6 km/s VOIII5007 Velocity on [O III] λ5007
(PHANGS-MUSE) (oiii5007velmuse)
1230-1241 E12.6 km/s e_VOIII5007 Error on velocity on [O III]
λ5007 (PHANGS-MUSE)
(oiii5007velerr_muse)
1243-1254 E12.6 km/s sigmaOIII5007 Velocity dispersion og [O III]
λ5007 (PHANGS-MUSE)
(oiii5007sigmamuse)
1256-1267 E12.6 km/s e_sigmaOIII5007 Error on velocity dispersion of
[O III] λ5007
(oiii5007sigmaerr_muse)
1269-1270 I2 --- BPT-NII [-1/3] BPT class using
[N II]/Hα (bptniimuse)
1272-1273 I2 --- BPT-SII [-1/3] BPT class using
[S II]/Hα (bptsiimuse)
1275-1276 I2 --- BPT-OI [-1/3] BPT class using
[O I]/Hα (bptoimuse)
1278-1289 E12.6 0.1nm EWHa Hα equivalent width
(PHANGS-MUSE) (halphaewmuse)
1291-1302 E12.6 0.1nm e_EWHa [] Uncertainty on Hα equivalent
width (PHANGS-MUSE)
(halphaewerr_muse)
1304-1315 E12.6 0.1nm EWHb Hβ equivalent width (PHANGS-MUSE)
(hbetaewmuse)
1317-1328 E12.6 0.1nm e_EWHb [] Uncertainty on Hβ equivalent
width (PHANGS-MUSE)
(hbetaewerr_muse)
1330-1341 E12.6 0.1nm EWHaraw Hα equivalent width from raw
spectrum (no continuum model,
PHANGS-MUSE) (halphaewraw_muse)
1343-1354 E12.6 0.1nm e_EWHaraw [] Uncertainty on Hα equivalent
width from raw spectrum (no continuum
model, PHANGS-MUSE)
(halphaewrawerrmuse)
1356-1367 E12.6 0.1nm EWHbraw Hβ equivalent width from raw
spectrum (no continuum model,
PHANGS-MUSE) (hbetaewraw_muse)
1369-1380 E12.6 0.1nm e_EWHbraw [] Uncertainty on Hβ equivalent
width from raw spectrum (no continuum
model, PHANGS-MUSE)
(hbetaewrawerrmuse)
1382-1393 E12.6 0.1nm EWHafit Hα equivalent width fitted model
(PHANGS-MUSE) (halphaewfit_muse)
1395-1406 E12.6 0.1nm e_EWHafit [] Uncertainty on Hα equivalent
width fitted model (PHANGS-MUSE)
(halphaewfiterrmuse)
1408-1419 E12.6 0.1nm EWHbfit Hβ equivalent width fitted model
(PHANGS-MUSE) (hbetaewfit_muse)
1421-1432 E12.6 0.1nm e_EWHbfit [] Uncertainty on Hβ equivalent
width fitted model (PHANGS-MUSE)
(hbetaewfiterrmuse)
1434-1445 E12.6 0.1nm EWHabgcorr ?=- Background-corrected Hβ
equivalent width (PHANGS-MUSE)
(halphaewbgcorr_muse)
1447-1458 E12.6 0.1nm e_EWHabgcorr []?=- Uncertainty on
background-corrected Hβ
equivalent width (PHANGS-MUSE)
(halphaewbgcorrerrmuse)
1460-1471 E12.6 0.1nm EWHbbgcorr ?=- Background-corrected Hβ
equivalent width (PHANGS-MUSE)
(hbetaewbgcorr_muse)
1473-1484 E12.6 0.1nm e_EWHbbgcorr []?=- Uncertainty on
background-corrected Hβ
equivalent width (PHANGS-MUSE)
(hbetaewbgcorrerrmuse)
1486-1497 E12.6 10-7W LHaHST Hα luminosity from HST
(halpha_lum)
1499-1510 E12.6 10-7W e_LHaHST Uncertainty on Hα luminosity
from HST (halphalumerr)
1512-1523 E12.6 10-7W LHa Hα luminosity from MUSE
(halphalummuse)
1525-1526 I2 --- HIIclassv2 [0/1]? PHANGS-MUSE H II classification
(v2; PHANGS-MUSE) (hiiclassv2_muse)
1528-1529 I2 --- HIIclassv3 [0/1]? PHANGS-MUSE H II classification
(v3; PHANGS-MUSE) (hiiclassv3_muse)
1531-1542 E12.6 K TeNII Electron temperature from [N II]
(PHANGS-MUSE) (teniimuse)
1544-1555 E12.6 K e_TeNII ?=- Uncertainty on electron
temperature from [N II] (PHANGS-MUSE)
(teniierr_muse)
1557-1568 E12.6 K TeSIII ?=- Electron temperature from [S III]
(PHANGS-MUSE) (tesiiimuse)
1570-1581 E12.6 K e_TeSIII ?=- Uncertainty on electron
temperature from [S III]
(PHANGS-MUSE) (tesiiierr_muse)
1583-1594 E12.6 cm-3 neSII ?=- Electron density from
[S II]6716/6731 (PHANGS-MUSE)
(nesiimuse)
1596-1607 E12.6 cm-3 e_neSII ?=- Uncertainty on electron density
from [S II]6716/6731 (PHANGS-MUSE)
(nesiierr_muse)
1609-1620 E12.6 s-1 q Ionizing photon rate Q(H^0) (q)
1622-1633 E12.6 s-1 e_q Uncertainty on ionizing photon rate
Q(H^0) (q)
1635-1646 E12.6 --- logqd91 ?=- log10 ionization parameter from
Diaz+1991 calibration (PHANGS-MUSE)
(logqd91muse)
1648-1659 E12.6 --- e_logqd91 ?=- Uncertainty on log10 ionization
parameter (PHANGS-MUSE)
(logqd91err_muse)
1661-1672 E12.6 mag E(B-V) ?=- Color excess E(B-V) from Balmer
decrement (PHANGS-MUSE) (ebv_muse)
1674-1685 E12.6 mag e_E(B-V) ?=- Uncertainty on color excess E(B-V)
from Balmer decrement (PHANGS-MUSE)
(ebverrmuse)
1687-1698 E12.6 mag AV ?=- Visual extinction A_V
(PHANGS-MUSE) (av_muse)
1700-1711 E12.6 --- MetScal ?=- Gas-phase metallicity (Scal code;
PHANGS-MUSE) (metallicityscalmuse)
1713-1724 E12.6 --- e_MetScal ?=- Uncertainty on gas-phase
metallicity (Scal code; PHANGS-MUSE)
(metallicityscalerr_muse)
1726-1737 E12.6 --- deltaMetScal ?=- Offset from local metallicity
trend (PHANGS-MUSE)
(metallicityscaldelta_ muse)
1739-1741 I3 Myr AgeANUV08pc ?=- Stellar association age
(NUV;8 pc; PHANGS-HST)
(ageassocnuv_08pc)
1743-1748 F6.1 Myr e_AgeANUV08pc ?=- Uncertainty on stellar association
age (NUV;8 pc; PHANGS-HST)
(ageerrassocnuv08pc)
1750-1757 F8.4 deg DEdegNUV08pc ?=- Association declination
(NUV;8 pc; PHANGS-HST)
(decassocnuv_08pc)
1759-1764 F6.4 mag E(B-V)NUV08pc ?=- Color excess E(B-V)
(NUV; 8 pc; PHANGS-HST)
(ebvassocnuv_08pc)
1766-1771 F6.4 mag e_E(B-V)NUV08pc ?=- Uncertainty on color excess E(B-V)
(NUV; 8 pc; PHANGS-HST)
(ebverrassocnuv08pc)
1773-1784 E12.6 Msun MassANUV08pc ?=- Stellar mass (NUV; 8 pc;
PHANGS-HST) (massassocnuv_08pc)
1786-1797 E12.6 Msun e_MassANUV08pc ?=- Uncertainty on stellar mass
(NUV; 8 pc; PHANGS-HST)
(masserrassocnuv08pc)
1799 I1 --- FlagMultNUV08p [0/1] Flag: multiple associations
(NUV; 8 pc; PHANGS-HST)
(flagmultiassocnuv08pc)
1801 I1 --- FlagNoNUV08pc [0/1] Flag: no association
(NUV; 8 pc; PHANGS-HST)
(flagnoneassocnuv08pc)
1803 I1 --- FlagOneNUV08pc [0/1] Flag: single association
(NUV; 8 pc; PHANGS-HST)
(flagoneassocnuv08pc)
1805-1819 F15.11 deg RAdegNUV08pc ?=- Association right ascension
(NUV; 8 pc; PHANGS-HST)
(raassocnuv_08pc)
1821-1823 I3 --- RegionIDNUV08p ?=- Association identifier
(NUV; 8 pc; PHANGS-HST)
(regionIDassocnuv08pc)
1825-1827 I3 Myr AgeANUV16pc ?=- Association age
(NUV; 16 pc; PHANGS-HST)
(ageassocnuv_16pc)
1829-1831 I3 Myr e_AgeANUV16pc ?=- Uncertainty on association age
(NUV; 16 pc; PHANGS-HST)
(ageerrassocnuv16pc)
1833-1847 F15.11 deg DEdegNUV16pc ?=- Association declination
(NUV; 16 pc; PHANGS-HST)
(decassocnuv_16pc)
1849-1852 F4.2 mag E(B-V)NUV16pc ?=- E(B-V) of association
(NUV; 16 pc; PHANGS-HST)
(ebvassocnuv_16pc)
1854-1857 F4.2 mag e_E(B-V)NUV16pc ?=- Uncertainty on E(B-V) of
association (NUV; 16 pc; PHANGS-HST)
(ebverrassocnuv16pc)
1859-1870 E12.6 Msun MassANUV16pc ?=- Stellar mass (NUV; 16 pc;
PHANGS-HST) (massassocnuv_16pc)
1872-1883 E12.6 Msun e_MassANUV16pc ?=- Uncertainty on stellar mass
(NUV; 16 pc; PHANGS-HST)
(masserrassocnuv16pc)
1885 I1 --- FlagMultNUV16p [0/1] Flag: multiple association
(NUV; 16 pc; PHANGS-HST)
(flagmultiassocnuv16pc)
1887 I1 --- FlagNoNUV16pc [0/1] Flag: no association
(NUV; 16 pc; PHANGS-HST)
(flagnoneassocnuv16pc)
1889 I1 --- FlagOneNUV16pc [0/1] Flag: single association
(NUV; 16 pc; PHANGS-HST)
(flagoneassocnuv16pc)
1891-1905 F15.11 deg RAdegNUV16pc ?=- Association right ascension
(NUV; 16 pc; PHANGS-HST)
(raassocnuv_16pc)
1907-1910 I4 --- RegionIDNUV16p ?=- Association identifier
(NUV; 16 pc; PHANGS-HST)
(regionIDassocnuv16pc)
1912-1916 I5 Myr AgeANUV32pc ?=- Association age (NUV; 32 pc;
PHANGS-HST) (ageassocnuv_32pc)
1918-1920 I3 Myr e_AgeANUV32pc ?=- Uncertainty on association age
(NUV; 32 pc; PHANGS-HST)
(ageerrassocnuv32pc)
1922-1936 F15.11 deg DEdegNUV32pc ?=- Association declination
(NUV;32 pc; PHANGS-HST)
(decassocnuv_32pc)
1938-1941 F4.2 mag E(B-V)NUV32pc ?=- E(B-V) of association
(NUV; 32 pc; PHANGS-HST)
(ebvassocnuv_32pc)
1943-1946 F4.2 mag e_E(B-V)NUV32pc ?=- Uncertainty on E(B-V) of
association (NUV; 32 pc; PHANGS-HST)
(ebverrassocnuv32pc)
1948-1959 E12.6 Msun MassANUV32pc ?=- Stellar mass (NUV; 32 pc;
PHANGS-HST) (massassocnuv_32pc)
1961-1972 E12.6 Msun e_MassANUV32pc ?=- Uncertainty on stellar mass
(NUV; 32 pc; PHANGS-HST)
(masserrassocnuv32pc)
1974 I1 --- FlagMultNUV32p [0/1] Flag: multiple associations
(NUV; 32 pc; PHANGS-HST)
(flagmultiassocnuv32pc)
1976 I1 --- FlagNoNUV32pc [0/1] Flag: no associations
(NUV; 32 pc; PHANGS-HST)
(flagnoneassocnuv32pc)
1978 I1 --- FlagOneNUV32pc [0/1] Flag: single associations
(NUV; 32 pc; PHANGS-HST)
(flagoneassocnuv32pc)
1980-1994 F15.11 deg RAdegNUV32pc ?=- Association right ascension
(NUV; 32 pc; PHANGS-HST)
(raassocnuv_32pc)
1996-1999 I4 --- RegionIDNUV32p ?=- Association identifier
(NUV; 32 pc; PHANGS-HST)
(regionIDassocnuv32pc)
2001-2003 I3 Myr AgeANUV64pc ?=- Association age (NUV; 64 pc;
PHANGS-HST) (ageassocnuv_64pc)
2005-2007 I3 Myr e_AgeANUV64pc ?=- Uncertainty on association age
(NUV; 64 pc; PHANGS-HST)
(ageerrassocnuv64pc)
2009-2023 F15.11 deg DEdegNUV64pc ?=- Association declination
(NUV; 64 pc; PHANGS-HST)
(decassocnuv_64pc)
2025-2028 F4.2 mag E(B-V)NUV64pc ?=- E(B-V) of association
(NUV; 64 pc; PHANGS-HST)
(ebvassocnuv_64pc)
2030-2033 F4.2 mag e_E(B-V)NUV64pc ?=- Uncertainty on E(B-V) of
association (NUV; 64 pc; PHANGS-HST)
(ebverrassocnuv64pc)
2035-2046 E12.6 Msun MassANUV64pc ?=- Stellar mass (NUV; 64 pc;
PHANGS-HST; PHANGS-HST)
(massassocnuv_64pc)
2048-2059 E12.6 Msun e_MassANUV64pc ?=- Uncertainty on stellar mass
(NUV; 64 pc; PHANGS-HST; PHANGS-HST)
(masserrassocnuv64pc)
2061 I1 --- FlagMultNUV64p [0/1] Flag: multiple associations
(NUV; 64 pc; PHANGS-HST)
(flagmultiassocnuv64pc)
2063 I1 --- FlagNoNUV64pc [0/1] Flag: no associations
(NUV; 64 pc; PHANGS-HST)
(flagnoneassocnuv64pc)
2065 I1 --- FlagOneNUV64pc [0/1] Flag: single associations
(NUV; 64 pc; PHANGS-HST)
(flagoneassocnuv64pc)
2067-2081 F15.11 deg RAdegNUV64pc ?=- Association right ascension
(NUV; 64 pc; PHANGS-HST)
(raassocnuv_64pc)
2083-2086 I4 --- RegionIDNUV64p ?=- Association identifier
(NUV; 64 pc; PHANGS-HST)
(regionIDassocnuv64pc)
2088-2092 I5 Myr AgeAV08pc ?=- Stellar association age
(V;8 pc; PHANGS-HST)
(ageassocv_08pc)
2094-2098 I5 Myr e_AgeAV08pc ?=- Uncertainty on stellar association
age (V;8 pc; PHANGS-HST)
(ageerrassocv08pc)
2100-2114 F15.11 deg DEdegV08pc ?=- Association declination
(V;8 pc; PHANGS-HST)
(decassocv_08pc)
2116-2119 F4.2 mag E(B-V)V08pc ?=- Color excess E(B-V)
(V; 8 pc; PHANGS-HST)
(ebvassocv_08pc)
2121-2124 F4.2 mag e_E(B-V)V08pc ?=- Uncertainty on color excess E(B-V)
(V; 8 pc; PHANGS-HST)
(ebverrassocv08pc)
2126-2137 E12.6 Msun MassAV08pc ?=- Stellar mass (V; 8 pc; PHANGS-HST)
(massassocv_08pc)
2139-2150 E12.6 Msun e_MassAV08pc ?=- Uncertainty on stellar mass
(V; 8 pc; PHANGS-HST)
(masserrassocv08pc)
2152 I1 --- FlagMultV08pc [0/1] Flag: multiple associations
(V; 8 pc; PHANGS-HST)
(flagmultiassocv08pc)
2154 I1 --- FlagNoV08pc [0/1] Flag: no association
(V; 8 pc; PHANGS-HST)
(flagnoneassocv08pc)
2156 I1 --- FlagOneV08pc [0/1] Flag: single association
(V; 8 pc; PHANGS-HST)
(flagoneassocv08pc)
2158-2172 F15.11 deg RAdegV08pc ?=- Association right ascension
(V; 8 pc; PHANGS-HST)
(raassocv_08pc)
2174-2177 I4 --- RegionIDV08pc ?=- Association identifier
(V; 8 pc; PHANGS-HST)
(regionIDassocv08pc)
2179-2183 I5 Myr AgeAV16pc ?=- Association age (V; 16 pc;
PHANGS-HST) (ageassocv_16pc)
2185-2189 I5 Myr e_AgeAV16pc ?=- Uncertainty on association age
(V; 16 pc; PHANGS-HST)
(ageerrassocv16pc)
2191-2205 F15.11 deg DEdegV16pc ?=- Association declination
(V; 16 pc; PHANGS-HST)
(decassocv_16pc)
2207-2210 F4.2 mag E(B-V)V16pc ?=- E(B-V) of association
(V; 16 pc; PHANGS-HST)
(ebvassocv_16pc)
2212-2215 F4.2 mag e_E(B-V)V16pc ?=- Uncertainty on E(B-V) of
association (V; 16 pc; PHANGS-HST)
(ebverrassocv16pc)
2217-2228 E12.6 Msun MassAV16pc ?=- Stellar mass (V; 16 pc;
PHANGS-HST) (massassocv_16pc)
2230-2241 E12.6 Msun e_MassAV16pc ?=- Uncertainty on stellar mass
(V; 16 pc; PHANGS-HST)
(masserrassocv16pc)
2243 I1 --- FlagMultV16pc [0/1] Flag: multiple association
(V; 16 pc; PHANGS-HST)
(flagmultiassocv16pc)
2245 I1 --- FlagNoV16pc [0/1] Flag: no association
(V; 16 pc; PHANGS-HST)
(flagnoneassocv16pc)
2247 I1 --- FlagOneV16pc [0/1] Flag: single association
(V; 16 pc; PHANGS-HST)
(flagoneassocv16pc)
2249-2263 F15.11 deg RAdegV16pc ?=- Association right ascension
(V; 16 pc; PHANGS-HST)
(raassocv_16pc)
2265-2268 I4 --- RegionIDV16pc ?=- Association identifier
(V; 16 pc; PHANGS-HST)
(regionIDassocv16pc)
2270-2274 I5 Myr AgeAV32pc ?=- Association age (V; 32 pc;
PHANGS-HST) (ageassocv_32pc)
2276-2280 I5 Myr e_AgeAV32pc ?=- Uncertainty on association age
(V; 32 pc; PHANGS-HST)
(ageerrassocv32pc)
2282-2296 F15.11 deg DEdegV32pc ?=- Association declination (V;32 pc;
PHANGS-HST) (decassocv_32pc)
2298-2301 F4.2 mag E(B-V)V32pc ?=- E(B-V) of association (V; 32 pc;
PHANGS-HST) (ebvassocv_32pc)
2303-2306 F4.2 mag e_E(B-V)V32pc ?=- Uncertainty on E(B-V) of
association (V; 32 pc; PHANGS-HST)
(ebverrassocv32pc)
2308-2319 E12.6 Msun MassAV32pc ?=- Stellar mass (V; 32 pc;
PHANGS-HST) (massassocv_32pc)
2321-2332 E12.6 Msun e_MassAV32pc ?=- Uncertainty on stellar mass
(V; 32 pc; PHANGS-HST)
(masserrassocv32pc)
2334 I1 --- FlagMultV32pc [0/1] Flag: multiple associations
(V; 32 pc; PHANGS-HST)
(flagmultiassocv32pc)
2336 I1 --- FlagNoV32pc [0/1] Flag: no associations
(V; 32 pc; PHANGS-HST)
(flagnoneassocv32pc)
2338 I1 --- FlagOneV32pc [0/1] Flag: single associations
(V; 32 pc; PHANGS-HST)
(flagoneassocv32pc)
2340-2354 F15.11 deg RAdegV32pc ?=- Association right ascension
(V; 32 pc; PHANGS-HST)
(raassocv_32pc)
2356-2359 I4 --- RegionIDV32pc ?=- Association identifier
(V; 32 pc; PHANGS-HST)
(regionIDassocv32pc)
2361-2365 I5 Myr AgeAV64pc ?=- Association age
(V; 64 pc; PHANGS-HST)
(ageassocv_64pc)
2367-2370 I4 Myr e_AgeAV64pc ?=- Uncertainty on association age
(V; 64 pc; PHANGS-HST)
(ageerrassocv64pc)
2372-2386 F15.11 deg DEdegV64pc ?=- Association declination
(V; 64 pc; PHANGS-HST)
(decassocv_64pc)
2388-2391 F4.2 mag E(B-V)V64pc ?=- E(B-V) of association (V; 64 pc;
PHANGS-HST) (ebvassocv_64pc)
2393-2396 F4.2 mag e_E(B-V)V64pc ?=- Uncertainty on E(B-V) of
association (V; 64 pc; PHANGS-HST)
(ebverrassocv64pc)
2398-2409 E12.6 Msun MassAV64pc ?=- Stellar mass (V; 64 pc;
PHANGS-HST; PHANGS-HST)
(massassocv_64pc)
2411-2422 E12.6 Msun e_MassAV64pc ?=- Uncertainty on stellar mass
(V; 64 pc; PHANGS-HST; PHANGS-HST)
(masserrassocv64pc)
2424 I1 --- FlagMultV64pc [0/1] Flag: multiple associations
(V; 64 pc; PHANGS-HST)
(flagmultiassocv64pc)
2426 I1 --- FlagNoV64pc [0/1] Flag: no associations
(V; 64 pc; PHANGS-HST)
(flagnoneassocv64pc)
2428 I1 --- FlagOneV64pc [0/1] Flag: single associations
(V; 64 pc; PHANGS-HST)
(flagoneassocv64pc)
2430-2444 F15.11 deg RAdegV64pc ?=- Association right ascension
(V; 64 pc; PHANGS-HST)
(raassocv_64pc)
2446-2449 I4 --- RegionIDV64pc ?=- Association identifier (V; 64 pc;
PHANGS-HST) (regionIDassocv64pc)
--------------------------------------------------------------------------------
Note (1): Environment fl ag following Querejeta et al. (2021A&A...656A.133Q 2021A&A...656A.133Q):
Centre (1), Bar (2-3), Arm (4-5), Interarm (6-7), Disc (8-9) (environment)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: list.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 24 I5 --- Nx Number of pixels along X-axis
26- 29 I4 --- Ny Number of pixels along Y-axis
31- 36 I6 Kibyte size Size of FITS file
38- 74 A37 --- FileName Name of FITS file with subdirectory
76-111 A36 --- Title Title of the FITS file
--------------------------------------------------------------------------------
Acknowledgements:
From Ashley Barnes, ashley.barnes(at)eso.org
This work has been carried out as part of the PHANGS collaboration.
Based on observations from the PHANGS-MUSE program, collected at the
European Southern Observatory under ESO programmes 094.C-0623 (PI:
Kreckel), 095.C-0473, 098.C-0484 (PI: Blanc), 1100.B-0651
(PHANGS-MUSE; PI: Schinnerer), as well as 094.B-0321 (MAGNUM; PI:
Marconi), 099.B-0242, 0100.B-0116, 098.B-0551 (MAD; PI: Carollo) and
097.B-0640 (TIMER; PI: Gadotti). In addition, this research is based
on observations made with the NASA/ESA Hubble Space Telescope obtained
from the Space Telescope Science Institute, which is operated by the
Association of Universities for Research in Astronomy, Inc., under
NASA contract NAS 5-26555. These observations are associated with
programs 15654, 17126, and 17457.
(End) Patricia Vannier [CDS] 03-Sep-2025