2005ApJ...619L..87H

Query : 2005ApJ...619L..87H

2005ApJ...619L..87H - Astrophys. J., 619, L87-L90 (2005/January-3)

Ultraviolet morphology and star formation in the tidal tails of NGC 4038/39.

HIBBARD J.E., BIANCHI L., THILKER D.A., RICH R.M., SCHIMINOVICH D., XU C.K., NEFF S.G., SEIBERT M., LAUGER S., BURGARELLA D., BARLOW T.A., BYUN Y.-I., DONAS J., FORSTER K., FRIEDMAN P.G., HECKMAN T.M., JELINSKY P.N., LEE Y.-W., MADORE B.F., MALINA R.F., MARTIN D.C., MILLIARD B., MORRISSEY P., SIEGMUND O.H.W., SMALL T., SZALAY A.S., WELSH B.Y. and WYDER T.K.

Abstract (from CDS):

We present Galaxy Evolution Explorer far-ultraviolet (1530 Å) and near-ultraviolet (2310 Å) observations of the archetypal merging system NGC 4038/39, ``the Antennae.'' Both tails are relatively bright in the UV, especially in the vicinity of the tidal dwarf galaxy candidates at the end of the southern tail. The UV light generally falls within the optically delineated tails, although the UV light is considerably more structured, with a remarkably similar morphology to the tidal H I. The UV colors suggest that there has been continuing star formation within the tidal tails, even outside the previously studied tidal dwarf regions. Within the inner disk regions, there are interesting UV features that appear to be related to the extended soft X-ray loops and halo recently discovered by Chandra.

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Journal keyword(s): Galaxies: Individual: NGC Number: NGC 4038/9 - Galaxies: Interactions - Galaxies: ISM - Galaxies: Starburst - Galaxies: Intergalactic Medium - Ultraviolet: Galaxies

Simbad objects: 4

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Number of rows : 4
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 [MDL92] TDG G 12 01 25.7 -19 00 42     17.3     ~ 5 0
2 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
3 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
4 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1

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