2010A&A...518L..54D

Query : 2010A&A...518L..54D

2010A&A...518L..54D - Astronomy and Astrophysics, volume 518, L54-54 (2010/7-2)

The Herschel Virgo Cluster Survey. VII. Dust in cluster dwarf elliptical galaxies.

DE LOOZE I., BAES M., ZIBETTI S., FRITZ J., CORTESE L., DAVIES J.I., VERSTAPPEN J., BENDO G.J., BIANCHI S., CLEMENS M., BOMANS D.J., BOSELLI A., CORBELLI E., DARIUSH A., DI SEREGO ALIGHIERI S., FADDA D., GARCIA-APPADOO D.A., GAVAZZI G., GIOVANARDI C., GROSSI M., HUGHES T.M., HUNT L.K., JONES A.P., MADDEN S., PIERINI D., POHLEN M., SABATINI S., SMITH M.W.L., VLAHAKIS C. and XILOURIS E.M.

Abstract (from CDS):

We use the science demonstration phase data of the Herschel Virgo Cluster Survey to search for dust emission of early-type dwarf galaxies in the central regions of the Virgo cluster as an alternative way of identifying the interstellar medium. We present the first possible far-infrared detection of cluster early-type dwarf galaxies: VCC781 and VCC951 are detected at the 10σ level in the SPIRE 250µm image. Both detected galaxies have dust masses of the order of 10⁵M_☉ and average dust temperatures ≃20K. The detection rate (less than 1%) is quite high compared to the 1.7% detection rate for HI emission, considering that dwarfs in the central regions are more HI deficient. We conclude that the removal of interstellar dust from dwarf galaxies resulting from ram pressure stripping, harassment, or tidal effects must be as efficient as the removal of interstellar gas.

Abstract Copyright: ∼

Journal keyword(s): galaxies: dwarf - galaxies: individual: VCC781 - galaxies: individual: VCC951 - galaxies: ISM - dust, extinction

Simbad objects: 19

Full paper

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Number of rows : 19

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag I	Sp type	#ref 1850 - 2023	#notes
1	NGC 185	Sy2	00 38 57.9400026024	+48 20 15.035874648		9.10	9.2		~	779	1
2	M 110	GiG	00 40 22.0572349992	+41 41 07.507220136		8.92	8.07		~	1277	1
3	NAME Scl Group	GrG	01 00 06	-33 44.2					~	497	0
4	ACO S 373	ClG	03 38 30	-35 27.3					~	1738	0
5	LEDA 40427	LSB	12 24 47.90	+11 49 06.2					~	7	0
6	LEDA 40460	GiC	12 25 04.5	+13 04 35		19.76	19.80	18.36	~	9	0
7	IC 3303	GiG	12 25 15.1991817360	+12 42 52.784461080		15.1	14.24	13.29	~	76	0
8	LEDA 40493	G	12 25 16.836	+11 36 19.26					~	19	0
9	LEDA 40548	GiC	12 25 37.2090679392	+13 08 37.337258544		16.8	15.39	14.29	~	40	0
10	LEDA 40571	G	12 25 43.583	+12 40 27.56					~	6	0
11	NAME Virgo Cluster	ClG	12 26 32.1	+12 43 24					~	6418	0
12	IC 3358	GiG	12 26 54.423	+11 39 48.84		14.28	13.52	12.30	~	69	1
13	SDSS J122655.56+114000.5	G	12 26 55.560	+11 40 00.56					~	2	0
14	LEDA 41286	LSB	12 30 16.017	+13 18 27.13					~	17	0
15	M 87	AGN	12 30 49.42338414	+12 23 28.0436859	10.16	9.59	8.63	7.49	~	6885	3
16	LEDA 41705	LSB	12 33 25.2137	+13 24 58.519		22			~	8	0
17	LEDA 41723	GiC	12 33 34.6393912344	+11 15 42.734036952		16			~	55	0
18	LEDA 41852	GiC	12 34 41.688	+11 08 34.12		19.88			~	8	0
19	NAME Local Group	GrG	~	~					~	7977	0

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