J/A+A/624/A141 MUSE-Wide Survey DR1 catalog (Urrutia+, 2019)
The MUSE-Wide Survey: survey description and first data release.
Urrutia T., Wisotzki L., Kerutt J., Schmidt K.B., Herenz E.C., Klar J.,
Saust R., Werhahn M., Diener C., Caruana J., Krajnovic D., Bacon R.,
Boogaard L., Brinchmann J., Enke H., Maseda M., Nanayakkara T., Richard J.,
Steinmetz M., Weilbacher P.M.
<Astron. Astrophys. 624, A141 (2019)>
=2019A&A...624A.141U 2019A&A...624A.141U (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Galaxy catalogs ; Redshifts ; Spectral types
Keywords: surveys - galaxies: general - galaxies: distances and redshifts -
galaxies: active
Abstract:
We present the MUSE-Wide survey, a blind, 3D spectroscopic survey in
the CANDELS/GOODS-S and CANDELS/COSMOS regions. The final survey will
cover 100x1arcmin2 MUSE fields. Each MUSE-Wide pointing has a depth
of one hour and hence targets more extreme and more luminous objects
over ten times the area of the MUSE-Deep fields (Bacon et al.,
2017A&A...608A...1B 2017A&A...608A...1B). The legacy value of MUSE-Wide lies in providing
"spectroscopy of everything" without photometric pre-selection. We
describe the data reduction, post-processing and PSF characterization
of the first 44 CANDELS/GOODS-S MUSE-Wide pointings released with this
publication. Using a 3D matched filtering approach we detect 1602
emission line sources, including 479 Lyman-α (Lya) emitting
galaxies with redshifts 2.9≲z≲6.3. We cross-matched the emission
line sources to existing photometric catalogs, finding almost complete
agreement in redshifts (photometric and spectroscopic) and stellar
masses for our low redshift (z<1.5) emitters. At high redshift, we
only find ∼55% matches to photometric catalogs. We encounter a higher
outlier rate and a systematic offset of Δz~=0.2 when comparing
our MUSE redshifts with photometric redshifts from the literature.
Cross-matching the emission line sources with X-ray catalogs from the
Chandra Deep Field South, we find 127 matches, mostly in agreement
with the literature redshifts, including ten objects with no prior
spectroscopic identification. Stacking X-ray images centered on our
Lya emitters yields no signal; the Lya population is not dominated by
even low luminosity AGN. Other cross-matches of our emission-line
catalog to radio and submm data, yielded far lower numbers of matches,
most of which already were covered by the X-ray catalog. A total of
9205 photometrically selected objects from the CANDELS survey lie in
the MUSE-Wide footprint, of which we provide optimally extracted 1D
spectra. We are able to determine the spectroscopic redshift of 98% of
772 photometrically selected galaxies brighter than 24th F775W
magnitude. All the data in the first data release - datacubes,
catalogs, extracted spectra, maps - are available on the website
https://musewide.aip.de.
Description:
We provide four tables in addition to the material available at
https://musewide.aip.de. Two of these tables relate to the
photometrically selected objects from the CANDELS (Guo et al., 2013,
Cat. J/ApJS/207/24) catalog that lie in the MUSE-Wide DR1 area. One
simply lists all 9205 objects and their (possible) emission line
counterpart, the other identifies the 772 objects brighter than 24th
magnitude (F775W), asigns redshift and confidence to that
identification and further links the object to the 3DHST (Skelton et
al., 2014, Cat. J/ApJS/214/24) catalog. The other two tables relate to
the emission line selection done with LSDCat (Herenz & Wisotzki,
2017A&A...602A.111H 2017A&A...602A.111H) on the MUSE-Wide DR1 footprint. One identifies
the 1602 emission line objects, relates them to photometric catalogs
and provides stellar masses if there is a photometric match. The other
lists emission line properties such as flux densities and kron radii
of the 3057 individual emission lines.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 67 44 MUSE-Wide observation data
photcat.dat 107 9205 Photometrically selected objects in MUSE-Wide DR1
photid.dat 128 772 Identification of photometrically selected
objects brighter than 24th magnitude
emobj.dat 162 1602 Emission line object table
emlines.dat 244 3057 Properties of all emission lines
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See also:
J/ApJS/207/24 : GOODS-S CANDELS multiwavelength catalog (Guo+, 2013)
J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)
J/A+A/606/A12 : MUSE-Wide survey: 831 emission line galaxies (Herenz+, 2017)
J/A+A/621/A107 : MUSE-Wide Lyman alpha luminosity function 3<z<6 (Herenz+ 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Field Name of the field
17- 18 I2 h RAh Field center right ascension (J2000)
20- 21 I2 min RAm Field center right ascension (J2000)
23- 28 F6.3 s RAs Field center right ascension (J2000)
30 A1 --- DE- Field center declination sign (J2000)
31- 32 I2 deg DEd Field center declination (J2000)
34- 35 I2 arcmin DEm Field center declination (J2000)
37- 42 F6.3 arcsec DEs Field center declination (J2000)
43- 56 A14 --- Obs.Date UT date observed
58- 61 F4.2 --- Airmass Averaged airmass
63- 67 F5.3 arcsec Seeing Averaged Seeing, Gaussian in focal plane from
Autoguider (best estimate)
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Byte-by-byte Description of file: photcat.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- GuoId Associated source in the Guo et al. (2013,
J/ApJS/207/24) photometric catalog (GUO_ID)
7- 16 F10.7 deg RAdeg Right Ascension (J2000) in degrees (RA)
18- 28 F11.7 deg DEdeg Declination (J2000) in degrees (DEC)
30- 44 A15 --- Field Name of the field (FIELD_NAME)
46- 50 F5.2 mag F435Wmag ?=99 AB magnitude in HST ACS F435W filter
(F435W_mag)
52- 56 F5.2 mag F606Wmag ?=99 AB magnitude in HST ACS F606W filter
(F606W_mag)
58- 62 F5.2 mag F775Wmag ?=99 AB magnitude in HST ACS F775W filter
(F775W_mag)
64- 68 F5.2 mag F814Wmag ?=99 AB magnitude in HST ACS F814W filter
(F814W_mag)
70- 74 F5.2 mag F850LPmag ?=99 AB magnitude in HST ACS F850LP filter
(F850LP_mag)
76- 80 F5.2 mag F105Wmag ?=99 AB magnitude in HST WFC3 F105W filter
(F105W_mag)
82- 86 F5.2 mag F125Wmag ?=99 AB magnitude in HST WFC3 F125W filter
(F125W_mag)
88- 92 F5.2 mag F160Wmag ?=99 AB magnitude in HST WFC3 F160W filter
(F160W_mag)
94-102 I9 --- Em-cp ?=0 Associated source in the emission line
catalog (EMISSION_CP)
104-107 F4.2 arcsec Em-sep ?=0 Angular separation to the emission line
catalog source (EMISSION_SEP)
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Byte-by-byte Description of file: photid.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- GuoId ID in the Guo et al. (2013, J/ApJS/207/24)
CANDELS HST catalog (GUO_ID)
7- 16 F10.7 deg RAdeg Right Ascension (J2000) (RA)
18- 28 F11.7 deg DEdeg Declination (J2000) (DEC)
30- 34 F5.2 mag F435Wmag ?=99 AB magnitude in HST ACS F435W filter
(F435W_mag)
36- 40 F5.2 mag F606Wmag AB magnitude in HST ACS F606W filter
(F606W_mag)
42- 46 F5.2 mag F775Wmag AB magnitude in HST ACS F775W filter
(F775W_mag)
48- 52 F5.2 mag F814Wmag AB magnitude in HST ACS F814W filter
(F814W_mag)
54- 58 F5.2 mag F850LPmag AB magnitude in HST ACS F850LP filter
(F850LP_mag)
60- 64 F5.2 mag F105Wmag ? AB magnitude in HST WFC3 F105W filter
(F105W_mag)
66- 70 F5.2 mag F125Wmag AB magnitude in HST WFC3 F125W filter
(F125W_mag)
72- 76 F5.2 mag F160Wmag AB magnitude in HST WFC3 F160W filter
(F160W_mag)
78- 92 A15 --- Field Name of the field (FIELD_NAME)
94- 98 I5 --- SkeltonId Associated source in the Skelton et al. (2014,
J/ApJS/214/24) photometric catalog
(SKELTON_ID)
100-103 F4.2 arcsec SkeltonSep Angular separation to the Skelton et al.
(2014, J/ApJS/214/24 source (SKELTON_SEP)
105-113 I9 --- Em-cp ?=0 Associated source in the emission line
catalog (EMISSION_CP)
115-118 F4.2 arcsec Em-sep ?=0 Angular separation to the emission line
catalog source (EMISSION_SEP)
120-126 F7.3 --- z ?=-99 Redshift of the source (Z)
128 I1 --- zconf [0/3]?=0 Confidence in redshift identification
(Z_CONF) (G1)
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Byte-by-byte Description of file: emobj.dat
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Bytes Format Units Label Explanations
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1- 9 I9 --- MUSE-Wide Unique MUSE-Wide object ID (UNIQUE_ID)
11- 25 A15 --- Field Name of the field (FIELD_NAME)
27- 36 F10.7 deg RAdeg Right Ascension (J2000) (RA)
38- 48 F11.7 deg DEdeg Declination (J2000) (DEC)
50- 54 F5.3 --- z Redshift of the source (Z)
56- 64 E9.3 --- e_z Error on the determined redshift (Z_ERR)
66- 69 A4 --- LeadLine Highest S/N detected line (LEAD_LINE)
71- 78 F8.3 --- SN S/N of the lead line (SN)
80 A1 --- Qual [abc] Quality flag (QUALITY) (1)
82 I1 --- Conf [1/3] Confidence value (CONFIDENCE) (G1)
84-134 A51 --- OLines Other detected lines in that source
(OTHER_LINES)
136-140 I5 --- GuoId ?=0 Associated source in the Guo et al. (2013,
J/ApJS/207/24) photometric catalogue (GUO_ID)
142-145 F4.2 arcsec GuoSep ? Angular separation to the Guo et al. (2013,
Cat. J/ApJS/207/24) source (GUO_SEP)
147-151 I5 --- SkeltonId ?=0 Associated source in the Skelton et al.
(2014, J/ApJS/214/24) photometric catalogue
(SKELTON_ID)
153-156 F4.2 arcsec SkeltonSep ? Angular separation to the Skelton et al.
(2014, J/ApJS/214/24) source (SKELTON_SEP)
158-162 F5.2 [Msun] logMass* ?=0 Log stellar mass in solar masses of the
galaxy associated to the emission line
(STELLAR_MASS)
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Note (1): Quality flag as follows:
a = multiple lines above the S/N threshold
b = only one line was detected, but more are visible in an extracted
S/N spectrum and match in redshift
c = single-line objects
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Byte-by-byte Description of file: emlines.dat
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Bytes Format Units Label Explanations
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1- 9 I9 --- MUSE-Wide Unique MUSE-Wide object ID (UNIQUE_ID)
11- 12 I2 --- Pointing Pointing to Field number (candels-cdfs-xx)
(POINTING_ID)
14- 15 I2 --- ObjId Object ID (only unique per field) (OBJ_ID)
17- 19 I3 --- RId Running ID (only unique per field) (RID)
21- 24 A4 --- Ident Line identification (IDENT)
26- 52 A27 --- Com Comment (COMMENT)
54- 61 F8.3 --- SN Detection significance (SN)
63- 72 F10.7 deg RAdeg 3D S/N weighted emission line position in
datacube (J2000) (RA_SN)
74- 84 F11.7 deg DEdeg 3D S/N weighted emission line position in
datacube (J2000) (DEC_SN)
86- 92 F7.2 0.1nm Lambda 3D S/N weighted emission line air
wavelength in datacube (LAMBDA_SN)
94-103 F10.7 deg RApdeg 3D S/N peak emission line position in
datacube (J2000) (RAPEAKSN)
105-115 F11.7 deg DEpdeg 3D S/N peak emission line position in
datacube (J2000) (DECPEAKSN)
117-123 F7.2 0.1nm Lambdap 3D S/N peak emission line air wavelength in
datacube (LAMBDAPEAKSN)
125-131 F7.2 0.1nm b_LambdaNB Lower value of lambdaNB interval
(LAMBDANBMIN)
133-139 F7.2 0.1nm B_LambdaNB Upper value of lambdaNB interval
(LAMBDANBMAX)
141-150 F10.7 deg RA1deg First central moment position of emission
line (J2000) (RA_1MOM)
152-162 F11.7 deg DE1deg First central moment position of emission
line (J2000) (DEC_1MOM)
164-168 F5.2 arcsec RKron ? Kron radius (R_KRON)
170-177 F8.2 10-23W/m2 FKron Emission line flux extracted in
rkron radius aperture (F_KRON)
179-187 F9.2 10-23W/m2 F2Kron Emission line flux extracted in
2*rkron radius aperture (F_2KRON)
189-197 F9.2 10-23W/m2 F3Kron Emission line flux extracted in
3*rkron radius aperture (F_3KRON)
199-207 F9.2 10-23W/m2 F4Kron Emission line flux extracted in
4*rkron radius aperture (F_4KRON)
209-214 F6.2 10-23W/m2 e_FKron rms uncertainty on FKron (FKRONERR)
216-222 F7.2 10-23W/m2 e_F2Kron rms uncertainty on F2Kron (F2KRONERR)
224-230 F7.2 10-23W/m2 e_F3Kron rms uncertainty on F3Kron (F3KRONERR)
232-238 F7.2 10-23W/m2 e_F4Kron rms uncertainty on F4Kron (F4KRONERR)
240-244 A5 --- Border [False/True] Flag indicating whether
3*rkron overlaps with pointing border
(BORDER_FLAG)
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Global notes:
Note (G1): Confidence flag as follows:
1 = lowest confidence with an assumed error probability in the
correct identification of the line of up to ~=50%.
2 = still quite trustful result (expected error rate ≲10%)
3 = very high certainty
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Acknowledgements:
Tanya Urrutia, turrutia(at)aip.de, Leibniz Institut fuer Astrophysik, Potsdam
(End) T. Urrutia [Leibniz Inst. Astrophys. Potsdam] P. Vannier [CDS] 27-Mar-2019