Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-12-04
Astron.Astrophys. 416 (2004) 647-654
Astronomy and Astrophysics
Astrophysics
9 pages, 11 figures, accepted by A&A
Scientific paper
10.1051/0004-6361:20034390
The southern emission-line star HD 144432 has received considerable attention due to its relative brightness (V ~ 8.17), its late spectral type (late A-type or perhaps early F) and its relative isolation from a bona-fide active star formation region. We present new imaging and spectroscopic data of this star, which in the past has been classified as both evolved (post-AGB) object and an isolated Herbig Ae/Be star. We confirm the presence of a faint companion source located 1.4 arcseconds north, which appears physically associated with HD 144432. New infrared spectroscopy reveals this companion to be a late-type (early-mid K) star, devoid of any emission lines. Furthermore, we confirm the pre-main sequence nature of this object, report the detection of Li I 6707.8 AA absorption toward the HD 144432 system, and its apparent association with Sco OB2-2 located at 145 pc.
Bopp Bernard William
de Winter Dolf
Perez Mario R.
van den Ancker Mario E.
No associations
LandOfFree
A young and complex binary star - HD 144432 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A young and complex binary star - HD 144432, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A young and complex binary star - HD 144432 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-630211