2007ApJS..173..471M

Query : 2007ApJS..173..471M

2007ApJS..173..471M - Astrophys. J., Suppl. Ser., 173, 471-481 (2007/December-0)

Keck DEIMOS spectroscopy of a GALEX UV-selected sample from the medium imaging survey.

MALLERY R.P., RICH R.M., SALIM S., SMALL T., CHARLOT S., SEIBERT M., WYDER T., BARLOW T.A., FORSTER K., FRIEDMAN P.G., MARTIN D.C., MORRISSEY P., NEFF S.G., SCHIMINOVICH D., BIANCHI L., DONAS J., HECKMAN T.M., LEE Y.-W., MADORE B.F., MILLIARD B., SZALAY A.S., WELSH B.Y. and YI S.

Abstract (from CDS):

We report results from a pilot program to obtain spectroscopy for objects detected in the Galaxy Evolution Explorer (GALEX) Medium Imaging Survey (MIS). Our study examines the properties of galaxies detected by GALEX fainter than the Sloan Digital Sky Survey (SDSS) spectroscopic survey. This is the first study to extend the techniques of Salim and coworkers to estimate stellar masses, star formation rates (SFRs), and the b (star formation history) parameter for star-forming galaxies out to z∼0.7. We obtain redshifts for 50 GALEX MIS sources reaching NUV=23.9 (AB mag) having counterparts in the SDSS Data Release 4 (DR4). Of our sample, 43 are star-forming galaxies with z<0.7, 3 have emission-line ratios indicative of active galactic nuclei with z<0.7, and 4 objects with z>1 are QSOs, 3 of which are not previously cataloged. We compare our sample to a much larger sample of ∼50,000 matched GALEX/SDSS galaxies with SDSS spectroscopy; while our survey is shallow, the optical counterparts to our sources reach ∼3 mag fainter in SDSS r than the SDSS spectroscopic sample. We use emission-line diagnostics for the galaxies to determine that the sample contains mostly star-forming galaxies. The galaxies in the sample populate the blue sequence in the NUV-r versus Mr color-magnitude diagram. The derived stellar masses of the galaxies range from 108 to 1011 M☉, and derived SFRs are between 10–1 and 102 M☉/yr. Our sample has SFRs, luminosities, and velocity dispersions that are similar to the samples of faint compact blue galaxies studied previously in the same redshift range by Koo and collaborators, Guzmán and collaborators, and Phillips and collaborators. However, our sample is ∼2 mag fainter in surface brightness than the compact blue galaxies. We find that the star formation histories for a majority of the galaxies are consistent with a recent starburst within the last 100 Myr.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: High-Redshift - Galaxies: Starburst - Ultraviolet: Galaxies

VizieR on-line data: <Available at CDS (J/ApJS/173/471): table1.dat table2.dat>

Simbad objects: 107

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Number of rows : 107
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 CD-58 8681 PM* 00 04 23.7914996712 -57 19 21.708726780   11.56 10.45     K5V 17 0
2 CD-50 14117 PM* 00 05 24.9947291760 -50 02 52.974174048   13.24 11.994 11.65   M5V 17 0
3 L 217-28 PM* 00 08 17.3830240051 -57 05 52.908409803   13.66 12.07 11.80 9.64 M4V 25 0
4 CD-45 35 PM* 00 13 02.5728028320 -45 10 36.324261696   12.004 10.706 10.02   K6Vk: 24 0
5 CD-48 33 ** 00 16 01.9650154752 -48 15 38.877256584 14.217 13.055 11.546 10.506 9.24 M5V 42 0
6 CD-60 31 PM* 00 17 30.5008123584 -59 57 04.563939636   12.90 11.26     M1V 23 0
7 CD-46 76 PM* 00 21 19.6195902906 -45 44 47.107952180 13.077 11.874 10.394 9.456 8.49 M1V 56 0
8 L 290-28 LM* 00 21 37.2621541564 -46 05 33.392805493 14.749 13.774 12.240 11.136 9.93 M3Ve 48 0
9 CD-51 89 PM* 00 23 18.5268725645 -50 53 37.940197990 14.58 13.405 11.859 11.483 9.56 M4V 45 0
10 V* CT Tuc Er* 00 25 14.6618673216 -61 30 48.252745152   13.11 11.34   9.66 M0Ve 65 0
11 CD-63 9 PM* 00 32 15.4210030914 -63 05 28.535779107   10.99 9.72     K7V 31 0
12 CD-44 170 PM* 00 39 58.8235825804 -44 15 11.577190086 14.079 12.888 11.401 10.433 9.371 M4V 79 0
13 CD-52 115 PM* 00 41 15.3194973840 -52 19 01.874290728   12.05 10.75     K7V 13 0
14 CD-54 157 PM* 00 41 51.1790300352 -53 57 48.703827060   11.90 10.63     K7V 16 0
15 Smethells 177 ** 00 53 23.85236 -41 14 18.6149 14.679 13.447 11.907 10.902 9.746 M1V 18 0
16 CD-47 399 PM* 01 21 45.3901703856 -46 42 51.764974020 14.103 12.893 11.403 10.426 9.31 M3V 37 0
17 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1923 1
18 SDSS J173730.68+572008.6 G 17 37 30.683 +57 20 08.69           ~ 1 0
19 SDSS J173734.40+572113.6 ? 17 37 34.408 +57 21 13.67           ~ 1 0
20 SDSS J173739.05+572130.1 G 17 37 39.054 +57 21 30.11           ~ 1 0
21 SDSS J173741.17+571846.3 G 17 37 41.176 +57 18 46.34           ~ 1 0
22 SDSS J173743.53+572405.5 G 17 37 43.534 +57 24 05.53           ~ 1 0
23 SDSS J173745.92+571917.2 G 17 37 45.924 +57 19 17.21           ~ 1 0
24 SDSS J173758.25+572016.7 G 17 37 58.253 +57 20 16.76           ~ 1 0
25 SDSS J173759.48+572321.7 G 17 37 59.486 +57 23 21.79           ~ 1 0
26 SDSS J173802.62+572327.0 G 17 38 02.624 +57 23 27.02           ~ 1 0
27 SDSS J173807.76+572334.9 G 17 38 07.761 +57 23 34.90           ~ 1 0
28 SDSS J173809.42+572521.4 * 17 38 09.4299168696 +57 25 21.445878828           ~ 1 0
29 SDSS J173822.18+572502.8 G 17 38 22.185 +57 25 02.87           ~ 1 0
30 SDSS J173823.62+572757.6 G 17 38 23.624 +57 27 57.69           ~ 1 0
31 SDSS J173827.88+572633.8 G 17 38 27.883 +57 26 33.84           ~ 1 0
32 SDSS J173836.53+573038.5 G 17 38 36.531 +57 30 38.58           ~ 1 0
33 SDSS J173837.32+572653.9 G 17 38 37.321 +57 26 53.90           ~ 1 0
34 2MASX J17383766+5729134 LIN 17 38 37.6526708088 +57 29 13.999005888           ~ 2 0
35 SDSS J173841.86+572809.3 G 17 38 41.866 +57 28 09.31           ~ 1 0
36 SDSS J173848.25+572910.4 G 17 38 48.259 +57 29 10.40           ~ 1 0
37 SDSS J173850.61+572954.3 G 17 38 50.614 +57 29 54.30           ~ 1 0
38 SDSS J173854.87+573005.8 G 17 38 54.875 +57 30 05.80           ~ 1 0
39 SDSS J173945.21+564002.2 G 17 39 45.216 +56 40 02.26           ~ 1 0
40 SDSS J173951.04+563913.0 G 17 39 51.041 +56 39 13.07           ~ 1 0
41 SDSS J173951.35+563958.8 G 17 39 51.355 +56 39 58.87           ~ 1 0
42 SDSS J173953.13+564018.9 G 17 39 53.137 +56 40 18.90           ~ 1 0
43 SDSS J173956.24+563817.1 G 17 39 56.2484356776 +56 38 17.117286252           ~ 1 0
44 SDSS J173956.30+563720.9 G 17 39 56.301 +56 37 20.96           ~ 1 0
45 SDSS J173956.71+563753.7 G 17 39 56.710 +56 37 53.75           ~ 1 0
46 SDSS J174001.66+564402.9 G 17 40 01.660 +56 44 02.99           ~ 1 0
47 SDSS J174003.84+564159.7 G 17 40 03.8380742136 +56 41 59.779795056           ~ 1 0
48 SDSS J174008.19+564457.7 G 17 40 08.196 +56 44 57.71           ~ 1 0
49 SDSS J174008.32+563939.7 G 17 40 08.328 +56 39 39.72           ~ 1 0
50 SDSS J174009.90+564007.5 G 17 40 09.907 +56 40 07.58           ~ 1 0
51 SDSS J174015.12+564604.5 G 17 40 15.126 +56 46 04.58           ~ 1 0
52 SDSS J174017.30+564130.9 G 17 40 17.300 +56 41 30.98           ~ 1 0
53 SDSS J174017.46+564805.5 G 17 40 17.459 +56 48 05.52           ~ 1 0
54 SDSS J174019.17+564339.1 ? 17 40 19.179 +56 43 39.15           ~ 1 0
55 SDSS J174020.96+564243.2 G 17 40 20.969 +56 42 43.20           ~ 1 0
56 SDSS J174023.22+564542.3 G 17 40 23.226 +56 45 42.39           ~ 1 0
57 SDSS J174023.70+564634.1 G 17 40 23.708 +56 46 34.11           ~ 1 0
58 SDSS J174029.68+565027.6 G 17 40 29.687 +56 50 27.69           ~ 1 0
59 SDSS J174032.49+564912.4 G 17 40 32.498 +56 49 12.48           ~ 1 0
60 SDSS J174033.18+564405.2 G 17 40 33.188 +56 44 05.26           ~ 1 0
61 SDSS J174035.69+565029.3 G 17 40 35.694 +56 50 29.30           ~ 1 0
62 SDSS J174043.73+564845.4 ? 17 40 43.739 +56 48 45.47           ~ 1 0
63 SDSS J174046.34+564913.4 G 17 40 46.347 +56 49 13.42           ~ 1 0
64 [VV2006] J174049.2+564723 QSO 17 40 49.2155481864 +56 47 23.450971632   20.04 19.69     ~ 22 0
65 SDSS J174056.18+564915.3 G 17 40 56.182 +56 49 15.35           ~ 1 0
66 SDSS J174056.59+564852.1 G 17 40 56.595 +56 48 52.17           ~ 1 0
67 CD-48 12979 PM* 19 15 53.7959871552 -48 21 27.743246928   11.47 10.43     K7V 15 0
68 L 347-17 PM* 19 19 08.9622872332 -45 47 58.491871685   13.13 11.508 11.085   M3V 16 0
69 CD-48 13174 PM* 19 36 14.8377938816 -47 56 54.087645728   11.353 10.188 9.61   K7V 20 0
70 Smethells 41 LM* 19 37 08.7869117208 -51 34 00.883431048   13.84 11.56 11.348 9.891 M1Ve 33 0
71 CD-45 13383 PM* 19 42 52.7657353104 -45 04 53.523625188   11.42 10.033 9.895   M1V 30 0
72 CD-44 13572 PM* 19 51 14.6672216397 -44 17 27.434714313   12.16 10.82     M0V 16 0
73 CD-53 8345 PM* 19 56 15.9399873672 -52 58 16.234818060   12.22 10.61 10.22   M0V 20 0
74 L 161-56 PM* 20 04 50.2076012088 -64 20 02.586437160   13.20 11.41     M1V 17 0
75 CD-52 9466 ** 20 21 10.9022661082 -51 47 27.907601777 12.904 11.691 10.227 9.31 8.385 M0V 28 0
76 HD 193406 * 20 22 13.7544062088 -49 44 18.549982464   11.14 10.17     K4Vk: 36 0
77 HD 195266 ** 20 32 08.8494428 -47 42 06.465573           K5/M0V 17 0
78 CD-56 8106 PM* 20 39 15.4694848512 -55 48 01.020169476   12.46 11.17     M1V 2 0
79 L 163-8 PM* 20 55 59.8829106986 -59 56 44.334145569   13.40 11.486 11.039   M2V 22 0
80 CD-45 14109 ** 20 56 47.3810007888 -44 51 48.629823048   12.61 11.48     M0V 12 0
81 CD-48 13736 SB* 20 59 16.4730823560 -47 58 59.017884132   11.891 10.577 9.85   K7V 17 0
82 CD-45 14148 PM* 21 01 44.0632128000 -44 31 06.192001020   12.43 11.13     K7V 15 0
83 V* CE Mic PM* 21 23 56.1527489832 -44 23 30.319730916   12.30 11.08     M1V 12 0
84 CD-44 14467 PM* 21 26 27.2624244096 -44 13 25.028298048   12.09 10.78     K7V 9 0
85 CD-41 14656 PM* 21 49 59.7857512781 -41 14 42.138859971 13.123 11.937 10.544 9.681 8.9 M0V 37 0
86 CD-52 10005 PM* 21 51 12.3337658676 -52 15 40.335690674 14.028 12.811 13.279 11.013 9.671 M2V 29 0
87 CPD-64 4178 PM* 21 53 02.7220601784 -64 13 02.677722348   11.09 9.89     K6.5V 19 0
88 CD-51 13128 Er* 21 57 41.2035635911 -51 00 22.237732006 12.968 12.008 10.487 9.416 8.101 M2Ve 90 0
89 CD-47 14002 PM* 21 59 08.2978359576 -46 45 47.257177104 14.416 13.16 11.45 10.808 9.696 M4V 21 0
90 CD-61 6651 PM* 21 59 32.0932247016 -60 55 58.699441740 12.084 10.844 9.562 8.785 8.132 K5.5V 31 0
91 CD-43 14916 PM* 22 10 08.0717035440 -42 54 08.290512864   11.66 10.36     K6Vk: 25 0
92 L 119-33 PM* 22 21 42.9156700776 -65 31 32.977791192 14.804 13.581 12.030 10.987 9.723 M5V 33 0
93 HD 211970 PM* 22 22 16.2061644288 -54 33 38.204366040 11.508 10.338 8.992 8.167 7.435 K7Vk: 53 0
94 CD-55 9094 ** 22 26 49.97328 -54 45 23.8397           K7V 13 0
95 CD-45 14712 ** 22 30 09.7983576992 -44 22 46.954878373   12.12 10.91 10.56   K6.5V 15 0
96 CD-44 14983 * 22 37 49.5740125056 -44 09 42.064274880   11.64 10.31 9.55 8.93 K7V 11 0
97 L 106-104 PM* 22 46 45.1317301680 -63 18 05.287548780 14.12 13.21 11.412 11.006 9.412 M3V 34 0
98 CD-54 9344 PM* 22 48 54.5130452980 -54 18 51.583185639 13.937 12.39 11.240 10.844 9.427 M1V 22 0
99 CD-58 8443 PM* 22 49 26.0385783947 -58 15 12.307716056   12.27 10.80     M0V 14 0
100 Smethells 119 Er* 22 55 27.2245313472 -52 18 09.629621964 14.30 13.00 11.51 10.52 9.44 M4V 33 0
101 CD-53 9269 PM* 23 00 26.0623300872 -53 13 40.062904320   11.664 10.506 10.266   K5V 28 0
102 CD-50 13863 PM* 23 03 20.8598556360 -49 43 34.017458952 13.346 12.127 10.667 9.735 8.753 M3V 41 0
103 V* DM Gru PM* 23 14 31.6528673160 -53 57 28.566858744   12.44 11.05     K7V 14 0
104 CD-61 6801 SB* 23 18 46.2070676040 -61 15 12.629891664   12.42 11.230 10.792   M3V 25 0
105 CD-60 8051 PM* 23 20 07.5245143451 -60 03 54.644648069   12.45 11.02 10.584   M2V 45 0
106 CPD-55 10013 ** 23 23 14.05098 -54 40 52.8490   12.192 10.954 10.27 9.666 K7V 15 0
107 CD-46 14814 ** 23 57 45.5681879728 -45 48 55.347717136   12.54 11.20 10.736   M2V 24 0

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