X‐Ray Localization of the Globular Cluster G1 withXMM‐Newton | Zendy

A. K. H. Kong | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

X‐Ray Localization of the Globular Cluster G1 withXMM‐Newton

Author(s) -

A. K. H. Kong

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/517880

Subject(s) - physics , globular cluster , astrophysics , astrometry , hubble space telescope , cluster (spacecraft) , black hole (networking) , astronomy , x ray , accretion (finance) , galaxy , stars , computer network , routing protocol , routing (electronic design automation) , link state routing protocol , quantum mechanics , computer science , programming language

We present an accurate X-ray position of the massive globular cluster G1 byusing XMM-Newton and the Hubble Space Telescope (HST). The X-ray emission of G1has been detected recently with XMM-Newton. There are two possibilities for theorigin of the X-ray emission. It can be either due to accretion of the centralintermediate-mass black hole, or by ordinary low-mass X-ray binaries. Theprecise location of the X-ray emission might distinguish between these twoscenarios. By refining the astrometry of the XMM-Newton and HST data, wereduced the XMM-Newton error circle to 1.5". Despite the smaller error circle,the precision is not sufficient to distinguish an intermediate-mass black holeand luminous low-mass X-ray binaries. This result, however, suggests thatfuture Chandra observations may reveal the origin of the X-ray emission.Comment: 4 pages, 2 figures; accepted for publication in Ap

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research