J/ApJ/663/218 Optical Spectroscopy of WIYN Hydra FLS sources (Marleau+, 2007)
Spectroscopic survey of 1.4GHz and 24µm sources in the Spitzer First Look
Survey with WIYN Hydra.
Marleau F.R., Fadda D., Appleton P.N., Noriega-crespo A., Im M., Clancy D.
<Astrophys. J., 663, 218-233 (2007)>
=2007ApJ...663..218M 2007ApJ...663..218M
ADC_Keywords: Galaxies, IR ; Radio sources ; Redshifts ; Spectroscopy
Keywords: galaxies: bulges - galaxies: evolution - galaxies: high-redshift -
galaxies: spiral - galaxies: starburst - infrared: galaxies
Abstract:
We present an optical spectroscopic survey of 24um and 1.4GHz
sources, detected in the Spitzer extragalactic First Look Survey
(FLS), using the multifiber spectrograph, Hydra, on the WIYN
telescope. We have obtained spectra for 772 sources, with flux
densities above 0.15mJy in the infrared and 0.09mJy in the radio.
The redshifts measured in this survey are mostly in the range 0<z<0.4,
with a distribution peaking at z∼0.2.
Description:
Our WIYN Hydra target sample was selected from two data sets of
sources detected in the FLS. The first set was comprised of sources
detected at 1.4GHz and with an R-band magnitude <23. This set was
used during our 2002 and 2003 observing runs, prior to the Spitzer
launch (2003 August 25). The second set was constructed from the 24um
sources, using the same R-band magnitude cut. These were targeted
during our 2005 observing run after the Spitzer observations of the
FLS were completed (2003 December 9-11). A few companions of 1.4GHz
and 24um sources were also part of the sample.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 44 15 The 15 fields observed with WIYN Hydra
table2.dat 188 772 The WIYN/Hydra Spectroscopic Catalog of 1.4GHz
and 24micron sources in the Spitzer FLS
table3.dat 204 772 Uncorrected line strengths and equivalent widths
table4.dat 154 772 Dereddened line ratios and extinction
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See also:
J/AJ/125/2411 : SIRTF First-Look Survey (Condon+, 2003)
J/AJ/128/1 : First Look Survey: NOAO R-band Mosaic (Fadda+, 2004)
J/A+A/424/371 : 1.4GHz First Look Survey (FLS) (Morganti+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Field Field name
9- 10 I2 h RAh Hour of Right Ascension (J2000)
12- 13 I2 min RAm Minute of Right Ascension (J2000)
15- 20 F6.3 s RAs Second of Right Ascension (J2000)
22 A1 --- DE- Sign of the Declination (J2000)
23- 24 I2 deg DEd Degree of Declination (J2000)
26- 27 I2 arcmin DEm Arcminute of Declination (J2000)
29- 33 F5.2 arcsec DEs Arcsecond of Declination (J2000)
35- 44 A10 "YYYY/MM/DD" Obs.Date Date of observation
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [MFA2007] Running identification number
5- 11 A7 --- Field Field name
13- 18 A6 --- APID AP identification within the field (APIDNN)
20- 21 I2 h RAh WIYN/Hydra Hour of Right Ascension (J2000)
23- 24 I2 min RAm WIYN/Hydra Minute of Right Ascension (J2000)
26- 31 F6.3 s RAs WIYN/Hydra Second of Right Ascension (J2000)
33 A1 --- DE- Sign of the WIYN/Hydra Declination (J2000)
34- 35 I2 deg DEd WIYN/Hydra Degree of Declination (J2000)
37- 38 I2 arcmin DEm WIYN/Hydra Arcminute of Declination (J2000)
40- 44 F5.2 arcsec DEs WIYN/Hydra Arcsecond of Declination (J2000)
46- 52 F7.4 --- z ?=-9.9999 WIYN/Hydra spectroscopic redshift
54- 59 F6.4 --- e_z Error in z
61 I1 --- q_z [0/2] Quality of z (2=good, 0=unknown) (1)
63- 65 A3 --- Type WIYN/Hydra type of spectrum (2)
67- 72 A6 --- Feat WIYN/Hydra spectral features (3)
74- 79 F6.2 mag Rmag ?=-99.99 Optical counterpart R-band magnitude
81- 82 I2 h RA2h ? 1.4GHz Hour of Right Ascension (J2000)
84- 85 I2 min RA2m ? 1.4GHz Minute of Right Ascension (J2000)
87- 92 F6.3 s RA2s ? 1.4GHz Second of Right Ascension (J2000)
94 A1 --- DE2- Sign of the 1.4GHz Declination (J2000)
95- 96 I2 deg DE2d ? 1.4GHz Degree of Declination (J2000)
98- 99 I2 arcmin DE2m ? 1.4GHz Arcminute of Declination (J2000)
101-105 F5.2 arcsec DE2s ? 1.4GHz Arcsecond of Declination (J2000)
107-113 F7.3 mJy F1.4 ?=-99.999 The 1.4GHz flux density
115-120 F6.3 mJy e_F1.4 ?=-9.999 Error in F1.4GHz
122-126 F5.2 arcsec Sep2 ?=-9.99 WIYN/1.4GHz match separation (5)
128-129 I2 h RA3h ? 24 micron Hour of Right Ascension (J2000)
131-132 I2 min RA3m ? 24 micron Minute of Right Ascension (J2000)
134-139 F6.3 s RA3s ? 24 micron Second of Right Ascension (J2000)
141 A1 --- DE3- Sign of the 24 micron Declination (J2000)
142-143 I2 deg DE3d ? 24 micron Degree of Declination (J2000)
145-146 I2 arcmin DE3m ? 24 micron Arcminute of Declination (J2000)
148-152 F5.2 arcsec DE3s ? 24 micron Arcsecond of Declination (J2000)
154-158 F5.2 mJy F24um ?=-9.99 Far-IR 24 micron flux density
160-164 F5.2 mJy e_F24um ?=-9.99 Error in F24um
166-170 F5.2 arcsec Sep3 ?=-9.99 WIYN/24 micron match separation (5)
172 A1 --- t24 [EP ] 24-micron source type (4)
174-180 F7.4 --- zSDSS ?=-9.9999 SDSS Redshift
182-188 F7.4 --- zMMT ?=-9.9999 MMT/Hectospec Redshift
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Note (1): Quality flag on z is numbered:
0 = unknown;
1 = tentative;
2 = good
Note (2): WIYN/Hydra type of spectrum indicates:
sta = star;
gal = galaxy;
bel = broad emission line
Note (3): WIYN/Hydra features uses the codes:
b = break;
e = emission;
a = absorption
Note (4): 24-micron source type code is:
E = extended;
P = point source;
blank = no match
Note (5): The separations were recomputed at CDS (original values seemed
to be expressed in degrees)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [MFA2007] Running identification number
5- 11 A7 --- Field Field name
13- 18 A6 --- APID AP identification within the field (APIDNN)
20- 21 I2 h RAh Hour of Right Ascension (J2000)
23- 24 I2 min RAm Minute of Right Ascension (J2000)
26- 31 F6.3 s RAs Second of Right Ascension (J2000)
33 A1 --- DE- Sign of the Declination (J2000)
34- 35 I2 deg DEd Degree of Declination (J2000)
37- 38 I2 arcmin DEm Arcminute of Declination (J2000)
40- 44 F5.2 arcsec DEs Arcsecond of Declination (J2000)
46- 54 F9.2 10-20W/m2 CIIIF ?=-999.9 Integrated CIII (1909) flux (1)
56- 64 F9.2 0.1nm CIIIEW ?=-999.9 CIII] (1909) equivalent width
66- 74 F9.2 10-20W/m2 MgIIF ?=-999.9 Integrated MgII (2798) flux (1)
76- 84 F9.2 0.1nm MgIIEW ?=-999.9 MgII (2798) equivalent width
86- 94 F9.2 10-20W/m2 HbF ?=-999.9 Integrated Hβ (4861) flux (1)
96-104 F9.2 0.1nm HbEW ?=-999.9 Hβ (4861) equivalent width
106-114 F9.2 10-20W/m2 OIIIF ?=-999.9 Integrated [OIII] (5007) flux (1)
116-124 F9.2 0.1nm OIIIEW ?=-999.9 [OIII] (5007) equivalent width
126-134 F9.2 10-20W/m2 HaF ?=-999.9 Integrated Hα (6563) flux (1)
136-144 F9.2 0.1nm HaEW ?=-999.9 Hα (6563) equivalent width
146-154 F9.2 10-20W/m2 NIIF ?=-999.9 Integrated [NII] (6583) flux (1)
156-164 F9.2 0.1nm NIIEW ?=-999.9 [NII] (6583) equivalent width
166-174 F9.2 10-20W/m2 SII1F ?=-999.9 Integrated [SII] (6716) flux (1)
176-184 F9.2 0.1nm SII1EW ?=-999.9 [SII] (6716) equivalent width
186-194 F9.2 10-20W/m2 SII2F ?=-999.9 Integrated [SII] (6731) flux (1)
196-204 F9.2 0.1nm SII2EW ?=-999.9 [SII] (6731) equivalent width
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Note (1): in 10-17erg/cm2/s
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- [MFA2007] Running identification number
5- 11 A7 --- Field Field name
13- 18 A6 --- APID AP identification within the field (APIDNN)
20- 21 I2 h RAh Hour of Right Ascension (J2000)
23- 24 I2 min RAm Minute of Right Ascension (J2000)
26- 31 F6.3 s RAs Second of Right Ascension (J2000)
33 A1 --- DE- Sign of the Declination (J2000)
34- 35 I2 deg DEd Degree of Declination (J2000)
37- 38 I2 arcmin DEm Arcminute of Declination (J2000)
40- 44 F5.2 arcsec DEs Arcsecond of Declination (J2000)
46- 54 F9.2 --- Balmer ?=-999.9 Balmer Decrement (1)
56- 64 F9.2 mag E(B-V) ?=-999.9 color excess
66- 74 F9.2 mag AV ?=-999.9 V band extinction
76- 84 F9.2 [10-7W] logLHa ?=-999.9 log(dereddened Hα luminosity)
86- 94 F9.2 [W/Hz] logL1.4 ?=-999.9 log(1.4GHz luminosity)
96-104 F9.2 [W/Hz] logL24u ?=-999.9 log(24µm luminosity)
106-114 F9.2 solMass/yr SFRHa ?=-999.9 Hα derived star formation
rate
116-124 F9.2 solMass/yr SFR1.4 ?=-999.9 1.4GHz derived star formation rate
126-134 F9.2 [-] Rat1 ?=-999.9 log([OIII](5007)/Hβ(4861))
136-144 F9.2 [-] Rat2 ?=-999.9 log([NII](6583)/Hα(6563))
146-154 F9.2 [-] Rat3 ?=-999.9 log([SII](6716+6731)/Hα(6563))
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Note (1): Balmer decrement, defined as Fo(Hα)/Fo(Hβ)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 16-Jun-2009