1998A&A...333L...1M


Query : 1998A&A...333L...1M

1998A&A...333L...1M - Astronomy and Astrophysics, volume 333, L1-4 (1998/5-1)

The dark side of star formation in the Antennae galaxies.

MIRABEL I.F., VIGROUX L., CHARMANDARIS V., SAUVAGE M., GALLAIS P., TRAN D., CESARSKY C., MADDEN S.C. and DUC P.-A.

Abstract (from CDS):

We compare mid-infrared images of the Antennae galaxies (NGC4038/39) from the Infrared Space Observatory, with optical images from the Hubble Space Telescope. The mid-infrared observations show that the most intense starburst in this colliding system of galaxies takes place in an off-nucleus region that is inconspicuous at optical wavelengths. The analyses of the mid-infrared spectra indicate that the most massive stars are being formed in an optically obscured knot of 50 pc radius, which produces about 15% of the total luminosity from the Antennae galaxies between 12.5µm and 18µm. The mid-infrared observations reported here demonstrate that the interpretation of star formation properties in colliding/merging systems based on visible wavelengths alone can be profoundly biased due to dust obscuration. The multiwavelength view of this nearby prototype merging system suggests caution in deriving scenarios of early evolution of high redshift galaxies using only observations in the narrow rest-frame ultraviolet wavelength range.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 4038/NGC 4039 - galaxies: individual: Antennae galaxies - infrared: interstellar: continuum - stars: formation

Simbad objects: 4

goto View the references in ADS

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 - 2022
#notes
1 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1296 1
2 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1619 0
3 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1145 1
4 NAME Centaurus A Sy2 13 25 27.6039817176 -43 01 09.493008456   8.18 6.84 6.66   ~ 4231 3

To bookmark this query, right click on this link: simbad:objects in 1998A&A...333L...1M and select 'bookmark this link' or equivalent in the popup menu


2022.05.27-13:52:38

© Université de Strasbourg/CNRS

    • Contact