Molecular oxygen in the ρ Ophiuchi cloud
نویسندگان
چکیده
منابع مشابه
Star Formation in the ρ Ophiuchi Molecular Cloud
A review of star formation in the Rho Ophiuchi molecular complex is presented, with particular emphasis on studies of the main cloud, L1688, since 1991. Recent photometric and parallax measurements of stars in the Upper Scorpius subgroup of the Sco-Cen OB association suggest a distance for the cloud between 120 and 140 parsecs. Star formation is ongoing in the dense cores of L1688 with a median...
متن کاملCentimeter-wave continuum radiation from the ρ Ophiuchi molecular cloud
The ρ Oph molecular cloud is undergoing intermediate-mass star formation. UV radiation from its hottest young stars heats and dissociates exposed layers, but does not ionize hydrogen. Only faint radiation from the Rayleigh-Jeans tail of ∼ 10–100 K dust is expected at wavelengths longwards of ∼3 mm. Yet Cosmic Background Imager (CBI) observations reveal that the ρ Oph W photo-dissociation region...
متن کاملCentimetre-wave continuum radiation from the ρ Ophiuchi molecular cloud
The ρ Oph molecular cloud is undergoing intermediate-mass star formation. Ultraviolet radiation from its hottest young stars heats and dissociates exposed layers, but does not ionize hydrogen. Only faint radiation from the Rayleigh-Jeans tail of ∼10–100 K dust is expected at wavelengths longwards of ∼3 mm. Yet cosmic background imager (CBI) observations reveal that the ρ Oph W photodissociation...
متن کاملROSAT-HRI detection of the Class I protostar YLW16A in the ρ Ophiuchi dark cloud
I analyze unpublished or partially published archival ROSAT data of the ρ Ophiuchi dark cloud. This set of seven overlapping ROSAT HRI pointings, composed of eight ∼one-hour exposures, detects mainly the X-ray brightest T Tauri stars of this star-forming region. Only two HRI sources are new X-ray sources, and their optical counterparts are proposed as new Weak T Tauri star candidates. Meanwhile...
متن کاملDiscovery of new embedded Herbig - Haro objects in the ρ Ophiuchi dark cloud ⋆
We report here the discovery of a 30 ′′-chain of embedded Herbig-Haro (HH) objects in the ρ Ophiuchi dark cloud. These HH objects were first detected during a deep KS-band observation (completeness magnitude for point source∼19) made with NTT/SOFI. We confirm their nature with follow-up observations made with H2 v=1–0 S(1) narrow-band filter. We argue that they belong to two different jets eman...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20065500