Large X‐Ray Flare from the Herbig Be Star MWC 297
نویسندگان
چکیده
منابع مشابه
On the origin of the X - ray emission towards the early Herbig Be star MWC 297
We present high resolution ( 0.2′′) AO-corrected coronographic near-infrared imaging on the early-type Herbig Be star MWC 297. X-ray flaring has been reported towards this young object, however this has been difficult to reconcile with its early spectral type (B1.5) and relatively high mass (∼10 M ). Our infrared and X-ray analysis shows that the X-ray flaring is likely due to a late-type star ...
متن کاملChandra X - ray observations of the stellar group near the Herbig Be star MWC 297 . A revision of the X - ray properties of MWC 297
We present a Chandra ACIS-I X-ray observation of the region near the Herbig early-Be star MWC 297, where we detect a tight group of point X-ray sources. These are probably physically associated to MWC 297, because of their obvious clustering with respect to the more scattered field-source population. These data are compared to earlier ASCA data with much poorer spatial resolution, from which th...
متن کاملDisk Surrounding the Massive Main Sequence Star Mwc 297 ?
We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J=2-1) rotational transitions of 12CO,13CO and C18O using the Submillimeter Array. At a distance of 250 pc, MWC 297 is one of the closest, young massive stars (M⋆ ∼10 M⊙) to us. Compact continuum emission is detected towards MWC 297 from which...
متن کاملar X iv : a st ro - p h / 99 11 12 0 v 1 8 N ov 1 99 9 Large X - ray Flare from a Herbig Be star , MWC 297
Hard X-ray emissions from a Herbig Be star MWC297 were discovered in three separate observations spanning 5 days in April 1994 with the Advanced Satellite for Cosmology and Astrophysics (ASCA). An X-ray flare was found at the beginning of the second observation with a maximum luminosity of ≈ 4.9 × 10 ergs/s, which is five times larger than that of the quiescent phase (the first observation). It...
متن کاملA large X-ray flare from the Herbig Ae star V892 Tau
We report the XMM-Newton observation of a large X-ray flare from the Herbig Ae star V892 Tau. The apparent low mass companion of V892 Tau, V892 Tau NE, is unresolved by XMM-Newton. Nevertheless there is compelling evidence from combined XMM-Newton and Chandra data that the origin of the flare is the Herbig Ae star V892 Tau. During the flare the X-ray luminosity of V892 Tau increases by a factor...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X,1538-4357
DOI: 10.1086/308607