J/A+A/543/A161 Submillimetre obs. of 323 HRS nearby galaxies (Ciesla+, 2012)
Submillimetre photometry of 323 nearby galaxies from the
Herschel Reference Survey.
Ciesla L., Boselli A., Smith M.W.L., Bendo G.J., Cortese L., Eales S.,
Bianchi S., Boquien M., Buat V., Davies J., Pohlen M., Zibetti S., Baes M.,
Cooray A., de Looze I., di Serego Alighieri S., Galametz M., Gomez H.L.,
Lebouteiller V., Madden S.C., Pappalardo C., Remy A., Spinoglio L.,
Vaccari M., Auld R., Clements. D.L.
<Astron. Astrophys. 543, A161 (2012)>
=2012A&A...543A.161C 2012A&A...543A.161C
ADC_Keywords: Galaxies, nearby ; Photometry, millimetric/submm ; Surveys
Keywords: galaxies: ISM - infrared: galaxies - surveys - catalogs
Abstract:
The Herschel Reference Survey (HRS) is a guaranteed time Herschel key
project aimed at studying the physical properties of the interstellar
medium in galaxies of the nearby universe. This volume limited, K-band
selected sample is composed of galaxies spanning the whole range of
morphological types (from ellipticals to late-type spirals) and
environments (from the field to the centre of the Virgo Cluster). We
present flux density measurements of the whole sample of 323 galaxies
of the HRS in the three bands of the Spectral and Photometric Imaging
Receiver (SPIRE), at 250um, 350um and 500um. Aperture photometry
is performed on extended galaxies and point spread function (PSF)
fitting on timeline data for unresolved objects; we carefully estimate
errors and upper limits. The flux densities are found to be in good
agreement with those of the HeViCS and KINGFISH key projects in all
SPIRE bands, and of the Planck consortium at 350um and 550um, for
the galaxies in common. This submillimetre catalogue of nearby
galaxies is a benchmark for the study of the dust properties in the
local universe, giving the zero redshift reference for any
cosmological survey.
Description:
We observed the 323 HRS galaxies with SPIRE (Griffin et al.
2010A&A...518L...3G 2010A&A...518L...3G) in three wide bands at 250, 350 and 500um. In
order not to duplicate Herschel observations, 79 galaxies out of 323
were observed as part of the open time key project the Herschel Virgo
Cluster Survey (HeViCS, Davies et al. 2010A&A...518L..48D 2010A&A...518L..48D).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 66 323 Apertures used for the on source and sky
background estimates (see Section 4.2)
tablea2.dat 128 323 Flux densities, numbers of pixels encompassed
within the apertures, and errors of the HRS
galaxies at 250, 350 and 500um (see Section 5)
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See also:
J/PASP/122/261 : Herschel Reference Survey Sample (Boselli+, 2010)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- HRS HRS (Herschel Reference Survey) sequential number,
<[BEC2010] HRS NNN> in Simbad
5- 10 I6 --- CGCG ? CGCG number (Cat. VII/49)
13- 16 I4 --- VCC ? VCC number (Cat. J/AJ/90/1681)
18- 21 I4 --- UGC ? UGC number (Cat. VII/26)
23- 26 I4 --- NGC ? NGC number (Cat. VII/118)
28- 31 I4 --- IC ? IC number (Cat. VII/118)
33- 39 F7.3 deg RAdeg Right ascension in decimal degrees (J2000)
41- 46 F6.3 deg DEdeg Declination in decimal degrees (J2000)
48- 50 I3 arcsec aIR Semi-major axis of the aperture
52- 54 I3 arcsec bIR Semi-minor axis of the aperture
56- 58 I3 deg PA [0/180]? Position angle (from North to East)
60- 62 I3 arcsec r.in Inner radius of the background circular annulus
64- 66 I3 arcsec r.out Outer radius of the background circular annulus
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- HRS HRS sequential number
4 A1 --- n_HRS Note on source (1)
6 I1 --- f_S250 [0/4] Flag for 250um detection (2)
8 A1 --- l_S250 Limit flag on S250
9- 15 F7.1 mJy S250 Flux density at 250um (3)
17- 22 F6.1 mJy e_S250 ? rms uncertainty on S250 (4)
24 I1 --- f_S350 [0/4] Flag for 350um detection (2)
26 A1 --- l_S350 Limit flag on S350
27- 33 F7.1 mJy S350 Flux density at 350um (3)
35- 40 F6.1 mJy e_S350 ? rms uncertainty on S350 (4)
42 I1 --- f_S500 [0/4] Flag for 500um detection (2)
44 A1 --- l_S500 Limit flag on S500
45- 51 F7.1 mJy S500 Flux density at 500um (3)
53- 58 F6.1 mJy e_S500 ? rms uncertainty on S500 (4)
60- 64 I5 --- N250 Number of pixels in the 250um aperture
66- 69 I4 --- N350 Number of pixels in the 350um aperture
71- 74 I4 --- N500 Number of pixels in the 500um aperture
76- 79 F4.1 mJy e250i Instrumental error on S250
81- 84 F4.1 mJy e350i Instrumental error on S350
86- 89 F4.1 mJy e500i Instrumental error on S500
91- 95 F5.1 mJy e250c Confusion error on S250
97-101 F5.1 mJy e350c Confusion error on S350
103-107 F5.1 mJy e500c Confusion error on S500
109-114 F6.1 mJy e250s Sky error on S250
116-121 F6.1 mJy e350s Sky error on S350
123-128 F6.1 mJy e500s Sky error on S500
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Note (1): Individual notes as follows:
a = Presence of a companion galaxy; flux densities are overestimated
b = Presence of a background source that cannot be separated at 250, 350
and 500um; flux densities are overestimated
c = Presence of a background source that cannot be separated at 350 and
500um; flux densities are overestimated
d = Presence of a strong cirrus
e = The source is considered point like; however in the PLW band (500um),
even if there is a detection, the emission of the galaxy is dominated
by a background source; the 500um flux density is thus an upper limit
f = Particular aperture adapted to take into account M86's structures
(Gomez et al. 2010A&A...518L..45G 2010A&A...518L..45G; Cortese et al. 2010A&A...518L..49C 2010A&A...518L..49C)
g = Aperture is off-centered to match the particular shape of NGC 4438
(Cortese et al. 2010A&A...518L..49C 2010A&A...518L..49C)
h = Flux densities in SPIRE bands dominated by synchrotron emission
(Baes et al. 2010A&A...518L..53B 2010A&A...518L..53B; Boselli et al. 2010A&A...518L..61B 2010A&A...518L..61B)
i = Presence of the companion NGC 4496B; flux densities are overestimated
j = NGC 4567 and NGC 4568, the two galaxies are overlapping;
flux densities are overestimated
k = Presence of a background source that cannot be separated at 500um;
flux are overestimated
Note (2): Flag as follows:
0 = non-detection
1 = detection (extended source)
2 = detection (point-like source)
3 = over-estimation of the flux density due to the presence of a
strong background source or companion galaxy
4 = presence of Galactic cirrus
Note (3): Flux densities do not contain colour corrections.
Note (4): Errors do not contain the 7% calibration errors.
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Acknowledgements:
Laure Ciesla, laure.ciesla (at) oamp.fr
(End) Patricia Vannier [CDS] 14-Jun-2012