2006MNRAS.371.1617A

Query : 2006MNRAS.371.1617A

2006MNRAS.371.1617A - Mon. Not. R. Astron. Soc., 371, 1617-1640 (2006/October-1)

The Arecibo Galaxy Environment Survey: precursor observations of the NGC 628 group.

AULD R., MINCHIN R.F., DAVIES J.I., CATINELLA B., VAN DRIEL W., HENNING P.A., LINDER S., MOMJIAN E., MULLER E., O'NEIL K., SABATINI S., SCHNEIDER S., BOTHUN G., CORTESE L., DISNEY M., HOFFMAN G.L., PUTMAN M., ROSENBERG J.L., BAES M., DE BLOK W.J.G., BOSELLI A., BRINKS E., BROSCH N., IRWIN J., KARACHENTSEV I.D., KILBORN V.A., KORIBALSKI B. and SPEKKENS K.

Abstract (from CDS):

The Arecibo Galaxy Environment Survey (AGES) is one of several Hi surveys utilizing the new Arecibo L-band Feed Array (ALFA) fitted to the 305-m radio telescope at Arecibo. The survey is specifically designed to investigate various galactic environments to higher sensitivity, higher velocity resolution and higher spatial resolution than previous fully sampled, 21-cm multibeam surveys. The emphasis is on making detailed observations of nearby objects although the large system bandwidth (100MHz) will allow us to quantify the Hi properties over a large instantaneous velocity range.

In this paper, we describe the survey and its goals and present the results from the precursor observations of a 5x1-deg2 region containing the nearby (∼10Mpc) NGC 628 group. We have detected all the group galaxies in the region including the low-mass (MHI∼107M☉) dwarf, dw0137+1541. The fluxes and velocities for these galaxies compare well with previously published data. There is no intragroup neutral gas detected down to a limiting column density of 2x1018/cm2.

In addition to the group galaxies we have detected 22 galaxies beyond the NGC 628 group, nine of which are previously uncatalogued. We present the Hi data for these objects and also SuperCOSMOS images for possible optical galaxies that might be associated with the Hi signal. We have used V/Vmaxanalysis to model how many galaxies beyond 1000km/s should be detected and compare this with our results. The predicted number of detectable galaxies varies depending on the Hi mass function (HIMF) used in the analysis. Unfortunately the precursor survey area is too small to determine whether this is saying anything fundamental about the HIMF or simply highlighting the effect of low number statistics. This is just one of many questions that will be addressed by the complete AGES survey.


Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): surveys - Galaxy: evolution - galaxies: fundamental parameters - galaxies: luminosity function, mass function - galaxies: structure

Nomenclature: Table 3: AGES JHHMMSS+DDMMSS N=22.

Simbad objects: 57

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Number of rows : 57
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 Z 459-60 AG? 01 28 47.232 +16 41 16.71 16.06 15.45 15.10 15.23   ~ 47 0
3 SDSS J013149.80+152326.5 HI 01 31 48.9 +15 23 53           ~ 1 0
4 2MASX J01320460+1530008 LIN 01 32 04.5849637056 +15 30 01.218441276           ~ 18 0
5 Z 460-6 AG? 01 32 42.5190557016 +18 19 01.514434548 15.03 14.56 14.13 13.89   ~ 101 0
6 2MASXI J0133132+160125 HI 01 33 12.9 +16 01 39           ~ 1 0
7 AGES J013323+160222 HI 01 33 22.8 +16 02 22           ~ 1 0
8 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
9 AGES J013538+154850 HI 01 35 38.0 +15 48 50           ~ 1 0
10 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
11 NAME NGC 628 Group GrG 01 36.7 +15 47           ~ 12 0
12 NVSS J013714+153722 Rad 01 37 18.0 +15 36 35           ~ 1 0
13 AGES J013807+154328 HI 01 38 07.0 +15 43 28           ~ 1 0
14 AGES J013827+154728 HI 01 38 26.8 +15 47 28           ~ 1 0
15 AGES J013917+154613 HI 01 39 17.1 +15 46 13           ~ 1 0
16 UGC 1171 GiP 01 39 44.90 +15 54 00.0   17       ~ 47 0
17 SDSS J013955.02+152036.7 HI 01 39 55.028 +15 20 36.77           ~ 3 0
18 AGES J013956+153135 HI 01 39 56.2 +15 31 03           ~ 2 0
19 UGC 1175 LSB 01 39 56.45832 +11 05 49.8336   17       ~ 32 0
20 NAME DW 0137+1541 G 01 40 09.5 +15 56 22           ~ 10 0
21 UGC 1176 GiP 01 40 10.39 +15 54 18.6 14.60 14.38 14.02 13.69   ~ 108 0
22 AGES J014013+153319 HI 01 40 13.0 +15 33 19           ~ 1 0
23 AGES J014025+151903 HI 01 40 25.2 +15 19 03           ~ 1 0
24 2MASXI J0140360+160414 HI 01 40 32.6 +16 05 13           ~ 1 0
25 IC 148 GiP 01 42 26.9623614216 +13 58 37.321027788   13.44       ~ 79 1
26 Z 437-11 LIN 01 42 48.32274 +13 09 20.8511   13.81       ~ 73 1
27 NGC 660 Sy2 01 43 02.350 +13 38 44.45   12.02 11.16     ~ 588 2
28 LEDA 6354 G 01 43 36.2 +15 41 38   16.28       ~ 29 0
29 AGES J014430+161502 HI 01 44 30.3 +16 15 02           ~ 1 0
30 AGES J014524+155923 HI 01 45 23.7 +15 59 23           ~ 1 0
31 2MASX J01463012+1543250 HI 01 46 30.1394249736 +15 43 24.831444828           ~ 1 0
32 AGES J014644+155622 HI 01 46 44.0 +15 56 22           ~ 1 0
33 Z 437-26 LSB 01 47 00.70 +12 24 21.0   15.1       ~ 24 0
34 NVSS J014722+155737 HI 01 47 19.1 +15 56 03           ~ 1 0
35 AGES J014742+161317 HI 01 47 41.7 +16 13 17           ~ 1 0
36 AGES J014752+155855 HI 01 47 51.7 +15 58 55           ~ 1 0
37 AGES J014834+152756 HI 01 48 33.7 +15 27 56           ~ 1 0
38 Z 484-14 GiG 02 36 16.152 +25 25 25.75   14.00       ~ 122 0
39 NGC 1156 GiG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 323 1
40 NGC 2577 GiP 08 22 43.4495600280 +22 33 11.142071640   13.8       ~ 133 0
41 NGC 3193 GiP 10 18 24.884 +21 53 38.32 12.29 11.83 10.88 12.19   ~ 301 1
42 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
43 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 798 1
44 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
45 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
46 NGC 4375 Sy2 12 25 00.4736834040 +28 33 30.969429876   13.9       ~ 49 0
47 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
48 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
49 NGC 6548 GiP 18 05 59.2439762424 +18 35 14.256371040   13.1       ~ 82 0
50 NGC 6555 AG? 18 07 49.168 +17 36 17.63   12.7       ~ 47 0
51 NAME Local Void vid 18 38 +18.0           ~ 234 0
52 NGC 7332 GiP 22 37 24.5373044952 +23 47 53.830708800   12.0       ~ 391 0
53 NGC 7339 G 22 37 46.890 +23 47 12.02   13.1       ~ 138 0
54 NGC 7448 AG? 23 00 03.589 +15 58 49.31   12.0       ~ 239 0
55 NAME NGC 7448 Group GrG 23 01 48.9 +15 58 09   11.3       ~ 24 1
56 NAME Virgo Extension GrG ~ ~           ~ 56 0
57 NAME Local Group GrG ~ ~           ~ 9325 0

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