2011A&A...528A..28P

Query : 2011A&A...528A..28P

2011A&A...528A..28P - Astronomy and Astrophysics, volume 528A, 28-28 (2011/4-1)

The WSRT Virgo HI filament survey. II. Cross correlation data.

POPPING A. and BRAUN R.

Abstract (from CDS):

The extended environment of galaxies contains a wealth of information about the formation and life cycle of galaxies which are regulated by accretion and feedback processes. Observations of neutral hydrogen are routinely used to image the high brightness disks of galaxies and to study their kinematics. Deeper observations will give more insight into the distribution of diffuse gas in the extended halo of the galaxies and the inter-galactic medium, where numerical simulations predict a cosmic web of extended structures and gaseous filaments. To observe the extended environment of galaxies, column density sensitivities have to be achieved that probe the regime of Lyman limit systems. HI observations are typically limited to a brightness sensitivity of N_HI∼10¹⁹cm^–2, but this must be improved upon by ∼2 orders of magnitude. In this paper we present the interferometric data of the Westerbork Virgo Hi Filament Survey (WVFS) - the total power product of this survey has been published in an earlier paper. By observing at extreme hour angles, a filled aperture is simulated of 300x25m in size, that has the typical collecting power and sensitivity of a single dish telescope, but the well defined bandpass characteristics of an interferometer. With the very good surface brightness sensitivity of the data, we hope to make new Hi detections of diffuse systems with moderate angular resolution. The survey maps 135 degrees in Right Ascension between 8 and 17h and 11 degrees in Declination between -1 and 10 degrees, including the galaxy filament connecting the Local Group with the Virgo Cluster. Only positive declinations could be completely processed and analysed due to projection effects. A typical flux sensitivity of 6 mJy/beam over 16 km/s is achieved, that corresponds to a brightness sensitivity of N_HI∼10¹⁸cm^–2. An unbiased search has been done with a high significance threshold as well a search with a lower significance limit but requiring an optical counterpart. In total, 199 objects have been detected, of which 17 are new Hi detections. By observing at extreme hour angles with the WSRT, a filled aperture can be simulated in projection, with a very good brightness sensitivity, comparable to that of a single dish telescope. Despite some technical challenges, the data provide valuable constraints on faint, circum-galactic HI features.

Abstract Copyright: ∼

Journal keyword(s): galaxies: formation - intergalactic medium

VizieR on-line data: <Available at CDS (J/A+A/528/A28): tablea1.dat>

Nomenclature: Table A.1: WVFSCC JHHMMSS+DDMMSS N=199.

Simbad objects: 209

Full paper

View the references in ADS

Number of rows : 209

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	NAME NCP	reg	00 00 00	+90 00.0						~	186	0
2	3C 48	QSO	01 37 41.2996631208	+33 09 35.080388820		16.62	16.20			~	2815	2
3	Z 32-35	AG?	08 31 21.639	+07 00 00.12		15.6				~	13	0
4	WVFSCC J083628+051108	G	08 36 33.8	+05 10 40						~	4	0
5	UGC 4524	AG?	08 40 14.221	+05 38 01.63		15.20				~	55	0
6	NGC 2644	AG?	08 41 31.9105611288	+04 58 48.940988448		13.40				~	66	0
7	UGC 4781	EmG	09 06 34.291	+06 18 13.70		14.90				~	50	0
8	UGC 4797	AG?	09 08 10.1916625656	+05 55 41.538664560		15.7				~	50	0
9	LEDA 2807128	LSB	09 08 36.540	+05 17 26.83		17.0				~	39	0
10	NGC 2775	AG?	09 10 20.1334093488	+07 02 16.874157048		11.417	10.481	9.920	8.994	~	356	0
11	HIPASS J0910+07	HI	09 10 35.0	+07 10 20						~	3	0
12	UGC 4845	AG?	09 12 25.832	+09 57 19.79		15.10				~	57	0
13	LEDA 4088225	AG?	09 12 46.624	+08 56 17.76						~	10	0
14	SDSS J092114.97+094352.2	AG?	09 21 14.979	+09 43 52.24						~	11	0
15	NGC 2894	GiG	09 29 30.2356489344	+07 43 07.767168672		13.4				~	68	0
16	NGC 2906	GiG	09 32 06.2228278920	+08 26 30.486567516		13.1				~	168	0
17	Z 35-7	AG?	09 34 44.716	+06 25 31.76		15.0				~	36	0
18	UGC 5107	AG?	09 35 07.475	+05 07 12.24		14.50				~	50	1
19	NGC 2962	GiP	09 40 53.9321546928	+05 09 57.032828496		13.1				~	201	0
20	NGC 2967	EmG	09 42 03.2933676504	+00 20 11.109810012		12.1		12.2	11.9	~	161	0
21	NGC 2966	GiP	09 42 11.5147585416	+04 40 23.485202148		14.0				~	113	0
22	WVFSCC J094238+045604	HI	09 42 50.753	+04 53 27.57						~	1	0
23	IC 559	AG?	09 44 43.816	+09 36 57.37		15.0				~	56	0
24	WVFSCC J094456+082003	HI	09 44 56.1	+08 20 03						~	2	0
25	UGC 5224	AG?	09 45 52.26	+02 58 39.9		15.3				~	23	0
26	UGC 5228	GiG	09 46 03.651	+01 40 05.96		13.6		13.4	13.3	~	75	0
27	UGC 5238	GiG	09 46 53.9874202608	+00 30 16.848225108		14.3		14.2	14.4	~	49	0
28	UGC 5249	AG?	09 47 45.381	+02 37 38.93		14.4				~	70	0
29	NGC 3023	GiP	09 49 52.636	+00 37 04.36		13.3	12.70	13.4	13.6	~	101	1
30	UGC 5288	PaG	09 51 17.241	+07 49 32.05	15.07	14.65	14.18	13.99		~	89	0
31	NGC 3044	AG?	09 53 40.884	+01 34 46.74		12.7		12.7	12.3	~	222	1
32	SDSS J095430.45+095212.0	AG?	09 54 30.4521006408	+09 52 11.976057228						~	12	0
33	NGC 3049	EmG	09 54 49.651	+09 16 17.90		13.04				~	329	1
34	NGC 3055	AG?	09 55 18.0694667208	+04 16 12.034089444		12.3				~	119	0
35	UGCA 188	AG?	09 55 29.697	+08 23 26.26		15.3				~	19	0
36	NAME Sextans B	H2G	10 00 00.8217342072	+05 20 09.533389560	12.77	12.25	11.89	11.71		~	528	0
37	Mrk 714	AG?	10 04 08.745	+06 30 37.51		15.2				~	21	0
38	UGC 5504	AG?	10 12 49.186	+07 06 13.68		15.6				~	23	0
39	UGC 5522	AG?	10 13 58.795	+07 01 26.88		14.4				~	65	0
40	NGC 3169	GiP	10 14 15.0379414272	+03 27 57.941639856		13.46	12.41			~	364	1
41	UGC 5539	LSB	10 15 55.00	+02 41 07.7		15.3				~	27	0
42	UGC 5551	AG?	10 17 11.520	+04 19 55.82		17				~	25	0
43	Z 37-33	AG?	10 25 46.449	+05 39 06.79		15.7				~	16	0
44	NGC 3246	AG?	10 26 41.766	+03 51 43.59		13.8				~	73	0
45	UGC 5677	AG?	10 28 38.16	+03 33 31.6		15.2				~	39	0
46	2MASX J10304437+0442329	GiG	10 30 44.3765295552	+04 42 33.585141024		15.2				~	15	0
47	UGC 5708	GiP	10 31 13.307	+04 28 20.08		14.60				~	69	0
48	NGC 3365	GiG	10 46 12.649	+01 48 47.95		13.0		13.0	12.9	~	100	0
49	NGC 3423	AGN	10 51 14.3245691976	+05 50 24.158965920		12.1				~	176	0
50	UGC 5974	GiG	10 51 35.311	+04 34 58.41		14.00				~	46	1
51	HIPASS J1051+03	HI	10 51 37.0	+03 26 57						~	3	0
52	USGC U333	GrG	10 52 01.4	+05 52 41						~	2	0
53	LEDA 32687	LSB	10 53 18.921	+02 37 36.43		15.4				~	22	0
54	UGC 6014	AG?	10 53 42.690	+09 43 40.53		15.2				~	44	0
55	NGC 3495	GiG	11 01 16.168	+03 37 40.93		13.10				~	153	0
56	NGC 3526	GiG	11 06 56.623	+07 10 26.12		13.70				~	120	0
57	BFW78 9	EmG	11 10 57.9	+09 36 34						~	7	0
58	NGC 3611	GiG	11 17 30.2	+04 33 19		12.4				~	125	0
59	LEDA 1367320	EmG	11 19 28.100	+09 35 44.29						~	25	0
60	Z 39-123	GiG	11 20 15.60	+02 31 31.0		14.4				~	62	0
61	NGC 3664	GiP	11 24 24.258	+03 19 29.95		13.6				~	124	0
62	IC 692	GiG	11 25 53.492	+09 59 14.16		14.1				~	49	0
63	IC 2828	EmG	11 27 10.9210049136	+08 43 51.666910572		14.7				~	54	0
64	NGC 3692	SyG	11 28 24.0160234080	+09 24 27.763742052		12.9				~	118	0
65	NGC 3705	GiG	11 30 07.456	+09 16 35.87	12.00	11.86	11.07			~	174	1
66	IC 718	AG?	11 39 52.762	+08 52 28.16		14.6				~	51	0
67	IC 719	AG?	11 40 18.4960446000	+09 00 35.742181788		13.6				~	122	0
68	LEDA 36594	LSB	11 44 54.302	+02 09 46.98		17.6				~	19	0
69	MCG+01-31-009	EmG	12 01 44.226	+05 49 17.10		14.9				~	30	0
70	NGC 4045	AGN	12 02 42.2505701136	+01 58 36.362990064		13.144		16.938	12.1	~	198	0
71	NGC 4116	GiP	12 07 37.156	+02 41 25.59		12.41	11.97			~	175	2
72	HIPASS J1208+02	EmG	12 08 04.2	+02 56 32						~	3	0
73	NGC 4123	AGN	12 08 11.1187718376	+02 52 41.781736956		13.1				~	340	2
74	WVFSCC J120929+080730	HI	12 09 29.7	+08 07 30						~	1	0
75	UGC 7178	AG?	12 11 03.666	+02 00 24.04		15.852		15.429		~	57	1
76	UGC 7185	GiG	12 11 27.300	+02 55 30.97		15.5				~	30	0
77	LEDA 135791	LSB	12 12 25.536	+02 48 33.93		15.4				~	18	0
78	UGC 7239	AG?	12 14 08.841	+07 46 34.47		15.0				~	73	0
79	NGC 4197	H2G	12 14 38.503	+05 48 20.58		13.8				~	140	0
80	MCG+01-31-030	GiP	12 15 18.322	+05 45 40.28		14.9				~	92	0
81	MCG+01-31-033	GiG	12 16 00.538	+04 39 03.19		14.8				~	55	0
82	UGC 7332	AG?	12 17 55.905	+00 26 11.10		14.8		14.7	16.6	~	52	0
83	NGC 4241	GiG	12 17 59.9038110672	+06 39 15.053590548		14.4				~	118	0
84	NGC 4252	LSB	12 18 30.934	+05 33 34.47		15.0				~	77	0
85	MCG+01-31-053	GiG	12 19 22.1244200352	+05 54 37.509552144		14.8				~	52	0
86	LEDA 39734	LSB	12 19 53.386	+06 39 55.97		19				~	51	0
87	NGC 4287	H2G	12 20 48.4901838024	+05 38 23.265307536		15.2				~	70	0
88	M 61	Sy2	12 21 54.9282582888	+04 28 25.597367184	10.07	10.18	9.65			~	996	2
89	UGC 7423	GiG	12 21 55.557	+06 27 02.19		15.3				~	48	0
90	NGC 4307	GiG	12 22 05.625	+09 02 36.79		13.4				~	162	0
91	NGC 4301	GiG	12 22 27.246	+04 33 58.69		13.40	12.99			~	122	1
92	LEDA 40107	EmG	12 22 37.426	+08 17 40.16		16.16				~	48	0
93	IC 3229	GiG	12 22 52.767	+06 40 50.12		15.0				~	63	0
94	NGC 4324	GiG	12 23 06.1747492368	+05 15 01.229253372		12.5				~	197	0
95	NGC 4343	AGN	12 23 38.6916756216	+06 57 14.481212688		14.816	13.860	13.824		~	175	1
96	IC 3259	GiP	12 23 48.497	+07 11 07.17		14.7				~	121	0
97	Z 42-75	GiG	12 24 03.215	+05 10 50.24		15.3				~	40	0
98	LEDA 4324871	AG?	12 24 05.093	+08 17 37.74						~	18	0
99	IC 3267	H2G	12 24 05.5301753400	+07 02 28.505676660		14.6				~	99	0
100	IC 3268	GiG	12 24 07.430	+06 36 26.89		14.2				~	113	0
101	LEDA 1261911	GiG	12 24 39.464	+03 59 43.74		15.3				~	60	0
102	Z 42-85	EmG	12 24 40.052	+03 18 12.22		14.9				~	36	0
103	NGC 4376	GiG	12 25 18.0159139968	+05 44 28.133108988		13.9				~	127	0
104	UGC 7512	LSB	12 25 40.875	+02 09 33.36		16.706		16.629		~	60	0
105	UGC 7513	GiG	12 25 42.634	+07 13 00.15		14.4				~	182	0
106	MCG+01-32-056	GiG	12 25 52.500	+05 48 36.32		15.2				~	76	0
107	LEDA 40631	LSB	12 26 01.333	+08 11 36.61		17.88				~	28	0
108	NAME Virgo Cluster	ClG	12 26 32.1	+12 43 24						~	6642	0
109	NGC 4416	GiG	12 26 46.72487	+07 55 08.4500						~	168	0
110	UGC 7546	GiP	12 26 47.2270744440	+08 53 04.479254880		14.4				~	180	0
111	WVFSCC J122654+012703	HI	12 26 54.8	+01 27 03						~	1	0
112	NGC 4423	GiG	12 27 08.972	+05 52 48.81		14.4				~	138	0
113	Z 42-108	GiG	12 27 11.07	+07 15 47.3		15.3				~	101	0
114	LEDA 40810	AG?	12 27 11.926	+08 50 24.33		20				~	21	0
115	NGC 4430	GiP	12 27 26.4060329472	+06 15 45.972776664		13.4				~	161	0
116	UGC 7590	GiG	12 28 18.772	+08 43 46.08		15.0				~	110	0
117	IC 3414	GiG	12 29 28.7704007928	+06 46 18.553776924		14.2				~	112	0
118	UGC 7642	LSB	12 30 13.38048	+02 37 30.5436		15.3				~	47	0
119	NGC 4483	GiG	12 30 40.6442816856	+09 00 56.391019596		13.4				~	165	0
120	NGC 4505	GiP	12 31 39.2222392512	+03 56 21.641352828		11.71				~	351	0
121	IC 3474	H2G	12 32 36.928	+02 39 49.57		15.0				~	82	0
122	LEDA 41631	GiP	12 32 51.3720075000	+02 37 47.052602256		16.35				~	26	0
123	LEDA 41647	AG?	12 32 57.624	+04 34 41.35		15.0				~	41	0
124	LEDA 41697	G	12 33 18.781	+09 07 13.92		20				~	20	0
125	NGC 4519	GiG	12 33 30.278	+08 39 16.06		12.8				~	279	0
126	NGC 4527	GiP	12 34 08.4	+02 39 15		12.4				~	532	2
127	NGC 4532	GiP	12 34 19.329	+06 28 03.73		12.3				~	286	2
128	NGC 4535	H2G	12 34 20.3443516704	+08 11 51.908488116		11.1				~	616	0
129	UGC 7739	GiP	12 34 44.934	+06 17 59.58		15.3				~	110	1
130	IC 3576	AGN	12 36 37.675	+06 37 15.19		15.90	15.40			~	117	1
131	UGC 7780	AG?	12 36 42.133	+03 06 32.35		16.5				~	49	0
132	IC 3591	bCG	12 37 02.697	+06 55 33.26		14.6				~	133	1
133	LEDA 42143	LSB	12 37 29.1657027192	+04 44 50.088637140		15.7				~	30	0
134	MCG+02-32-161	GiG	12 37 41.518	+08 33 31.20		15.1				~	120	0
135	IC 3617	GiG	12 39 24.650	+07 57 53.18		14.8				~	120	0
136	LEDA 42378	AG?	12 39 40.140	+09 23 55.77		16				~	39	0
137	NGC 4630	H2G	12 42 31.146	+03 57 37.29		13.4				~	145	0
138	LEDA 42768	LSB	12 43 07.4982888312	+07 39 16.422815376		18				~	53	0
139	UGC 7911	GiG	12 44 28.7701941216	+00 28 05.159668620		13.3		13.485	13.0	~	75	0
140	UGC 7943	GiG	12 46 45.71448	+05 57 19.2276		14.7				~	64	0
141	NGC 4688	GiP	12 47 46.5220541760	+04 20 09.766119156		14.5				~	177	1
142	NGC 4698	Sy2	12 48 22.9082830584	+08 29 14.667552276		13.24	12.27			~	483	0
143	NGC 4701	GiG	12 49 11.5931072112	+03 23 19.389227964		13.1				~	170	0
144	UGC 7983	AG?	12 49 47.020	+03 50 32.28		16.5				~	32	0
145	NGC 4713	GiG	12 49 57.8802780576	+05 18 40.933127196		12.3				~	304	0
146	NGC 4765	GiG	12 53 14.6103052812	+04 27 47.472430278		13.0				~	120	0
147	NGC 4809	GiP	12 54 51.06	+02 39 14.7		14.20				~	74	2
148	NGC 4808	GiG	12 55 48.940	+04 18 14.74		12.5				~	230	0
149	UGC 8053	EmG	12 55 49.0635382929	+04 00 50.139602077		15.0				~	56	0
150	UGC 8055	LSB	12 56 04.6621560288	+03 48 46.548862992		17				~	49	0
151	LEDA 44215	GiG	12 56 57.087	+04 03 53.40		15.3				~	23	0
152	UGC 8074	GiG	12 57 44.590	+02 41 30.27		15.4				~	35	0
153	NGC 4900	EmG	13 00 39.1193785512	+02 30 05.154593868		12.8				~	253	0
154	UGC 8276	AG?	13 12 06.554	+05 28 32.53		18				~	33	0
155	UGC 8285	AG?	13 12 33.270	+07 11 03.33		15.2				~	37	0
156	UGC 8382	AG?	13 20 32.310	+05 24 25.53		15.3				~	29	0
157	UGC 8385	AG?	13 20 38.718	+09 47 10.11		14.6				~	58	0
158	NGC 5147	H2G	13 26 19.7264077272	+02 06 02.697188760		12.7				~	113	0
159	3C 286	Sy1	13 31 08.2883506368	+30 30 32.960091564		17.51	17.25			~	4341	2
160	MCG+02-35-003	GiG	13 34 37.784	+08 47 36.96		15.3				~	27	0
161	UGC 8575	GiG	13 35 45.619	+08 58 09.56		15.5				~	52	0
162	UGC 8614	GiG	13 37 26.225	+07 38 51.17		15.4				~	52	0
163	NGC 5248	GiG	13 37 32.0145074088	+08 53 06.496982448		11.4				~	508	0
164	UGC 8629	GiG	13 38 30.648	+08 26 32.36		15.5				~	40	0
165	NGC 5300	EmG	13 48 16.0374180816	+03 57 03.109732632		13.7				~	140	0
166	UGC 8799	AG?	13 53 19.84	+05 46 17.9		16.5				~	17	0
167	NGC 5348	GiP	13 54 11.254	+05 13 37.91		14.5				~	96	0
168	NGC 5364	GiP	13 56 12.004	+05 00 52.06		13.2				~	259	0
169	UGC 8995	GiC	14 04 47.380	+08 48 03.89		14.9				~	59	0
170	NGC 5470	GiG	14 06 31.999	+06 01 45.86		14.5				~	74	0
171	LEDA 140287	AG?	14 16 57.272	+03 50 10.08						~	16	0
172	UGC 9169	AG?	14 19 44.637	+09 21 44.46		14.7				~	47	0
173	NGC 5560	GiP	14 20 04.497	+03 59 33.55	13.38	13.20	12.37			~	125	1
174	LEDA 4112990	AG?	14 20 44.531	+08 37 35.88						~	14	0
175	NGC 5577	GiP	14 21 13.110	+03 26 08.76		13.05				~	129	1
176	UGC 9215	EmG	14 23 27.1688465352	+01 43 34.412659176		13.16		12.555	13.0	~	114	1
177	UGC 9225	AG?	14 24 24.616	+08 16 39.48		15.4				~	24	0
178	UGC 9249	AG?	14 26 59.776	+08 41 01.02		15.1				~	45	0
179	UGC 9310	GiP	14 30 01.130	+03 13 12.29		14.50				~	45	1
180	NGC 5645	GiG	14 30 39.3607130040	+07 16 30.307322856		12.8				~	130	0
181	IC 1024	GiG	14 31 27.221	+03 00 32.78		13.87				~	117	1
182	Z 75-61	AG?	14 31 52.471	+08 55 58.99		15.3				~	22	0
183	NGC 5669	H2G	14 32 43.476	+09 53 25.47		13.2				~	198	0
184	UGC 9364	GiG	14 33 21.578	+06 52 39.59		15.0				~	36	0
185	NGC 5668	AG?	14 33 24.3419973936	+04 27 01.650790800		12.7				~	217	0
186	UGC 9380	GiC	14 34 39.161	+04 15 50.58		14.20				~	46	1
187	UGC 9385	AG?	14 35 22.784	+05 16 35.61		17				~	36	0
188	NGC 5690	GiG	14 37 41.0621949635	+02 17 27.095213875		13.10				~	170	0
189	UGC 9432	GiG	14 39 04.536	+02 56 58.96		14.60				~	27	1
190	NGC 5701	GiG	14 39 11.0751915840	+05 21 48.493104264	12.03	11.76	10.88			~	240	1
191	LEDA 1360237	AG?	14 39 12.522	+09 08 09.14						~	15	0
192	IC 1048	GiP	14 42 57.876	+04 53 24.46		14.0				~	104	0
193	NGC 5740	GiP	14 44 24.4374499392	+01 40 47.224019676		12.5		12.5	12.0	~	170	0
194	NGC 5746	GiP	14 44 56.005	+01 57 17.06		12.3				~	358	0
195	UGC 9500	AG?	14 45 21.50	+07 51 46.0		18				~	43	0
196	HIPASS J1452+03	HI	14 52 40.3	+03 15 55						~	3	0
197	NGC 5774	GiP	14 53 42.46224	+03 34 56.9532		13.9	12.94			~	159	1
198	Z 48-85	AG?	14 58 37.854	+06 46 30.54		15.4				~	20	0
199	NGC 5921	AG?	15 21 56.561	+05 04 13.94		12.7				~	276	0
200	UGC 9845	AG?	15 26 05.559	+09 12 14.58		15.3				~	46	0
201	NGC 5964	EmG	15 37 36.2103407496	+05 58 26.360661972		12.45	11.82	11.48	10.89	~	126	0
202	UGC 10023	LSB	15 46 09.7256696088	+06 53 54.511723320		15.2				~	35	0
203	UGC 10041	AG?	15 49 01.548	+05 11 21.77		15.0				~	46	0
204	Z 79-46	AG?	16 06 02.185	+08 30 24.34		15.6				~	19	0
205	Z 51-43	EmG	16 06 40.928	+06 34 53.84		15.3				~	18	0
206	IC 1197	AG?	16 08 17.292	+07 32 18.79		14.7				~	69	0
207	NGC 6106	AG?	16 18 47.1730173576	+07 24 38.951833860		13.4				~	115	0
208	LEDA 2801031	G	16 56 38.5	+07 59 55						~	11	0
209	NAME Local Group	GrG	~	~						~	8387	0

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