Abstract Details
| Name: Dr. Mahadev Baburao Pandge Affiliation: Dayanand Science College Latur Conference ID: ASI2017_499 Title : Discovery of Mpc-scale X-ray tail in MACS J0553.4-3342 Authors and Co-Authors : S.S Sonkamble M.K.Patil S.R.T.M. University Nanded Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : We report discovery of longest 130′′(~ 1002 kpc) at (2σ) and hottest (11.86±2.3 keV) X-ray tail in northeast direction of a young merging galaxy cluster MACS J0553.4-3342, with 83 ks deep Chandra archival observation. The X-ray tail has a length-to-width ratio of ~ 3.85 (2σ). This is the longest as well as hottest X-ray tail reported to date in galaxy cluster merging environment. The X-ray tail is very luminous L[0.2−2.4,keV]~ 3.47 ± 0.02 × 10^43 erg s^1, while X-ray tail contain gas mass of M_Tail ~2.31×10^12M⊙. We interpret that the possible origin of the X-ray tail structure is either ongoing merger or stripped gas from the BCG1 (1RXS J055326.7- 334237) has been compressed and/or heated. Further deep X-ray and low frequency radio observations are needed to understand the clear nature of this X-ray tail. |