Star formation along a misaligned bar in the peculiar starburst galaxy Mkn439

Citation
A. Chitre et al., Star formation along a misaligned bar in the peculiar starburst galaxy Mkn439, ASTRON ASTR, 352(1), 1999, pp. 112-116
Citations number
22
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
352
Issue
1
Year of publication
1999
Pages
112 - 116
Database
ISI
SICI code
0004-6361(199912)352:1<112:SFAAMB>2.0.ZU;2-D
Abstract
We report the detection of massive star formation along a bar in the peculi ar starburst galaxy Mkn 439. We present optical B, R and H alpha+[NII] emis sion line images as well as H band images to show that the signature of the bar becomes progressively weak at longer wavelengths. Moreover, this bar i s misaligned with the main body of the galaxy. The peak H alpha emission do es not coincide with the bluest regions seen in the colour maps. We infer t hat the starburst is young since the stars in the burst have not started in fluencing the light in the near infrared. There are indications of dust in the inner regions of this galaxy.