Search for X-ray emission from bona-fide and candidate brown dwarfs

Simple item page
dc.creatorNeuhaeuser, Ralph
dc.creatorBriceno, Cesar
dc.creatorComeron, Fernando
dc.creatorHearty, Thomas
dc.creatorMartin, Eduardo L.
dc.creatorSchmitt, Juergen H. M. M.
dc.creatorStelzer, Beate
dc.creatorSupper, Rodrigo
dc.creatorVoges, Wolfgang
dc.creatorZinnecker, Hans
dc.date1998-12-23
dc.date.accessioned2026-07-07T02:29:48Z
dc.date.available2026-07-07T02:29:48Z
dc.descriptionFollowing the recent classification of the X-ray detected object V410 x-ray 3 with a young brown dwarf candidate (Briceno et al. 1998) and the identification of an X-ray source in Chamaeleon as young bona-fide brown dwarf (Neuhaeuser & Comeron 1998), we investigate all ROSAT All-Sky Survey and archived ROSAT PSPC and HRI pointed observations with bona-fide or candidate brown dwarfs in the field of view with exposure times ranging from 0.13 to 221 ks, including dedicated 64 ks and 42 ks deep ROSAT HRI pointed observations on the low-mass star BRI0021-0214 and the brown dwarf Calar 3, respectively. Out of 26 bona-fide brown dwarfs, one is newly detected in X-rays, namely rho Oph GY 202. Also, four out of 57 brown dwarf candidates studied here are detected in X-rays, namely the young Taurus brown dwarf candidates MHO-4, MHO-5, V410 Anon 13, and V410 x-ray 3. The M9.5-type star BRI0021-0214 is not detected. In the appendix, we also present catalogued, but as yet unnoticed B- and R-band data for some of the objects studied here.
dc.descriptiontext with 7 tables plus 3 figures. Astron. & Astrophys., in press
dc.identifierhttps://arxiv.org/abs/astro-ph/9812436
dc.identifierhttp://arxiv.org/abs/astro-ph/9812436
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13617
dc.subjectAstrophysics
dc.titleSearch for X-ray emission from bona-fide and candidate brown dwarfs
dc.typetext

Files

Collections

arXiv