Quantifying the Importance of Ram Pressure Stripping in a Galaxy Group at 100 Mpc - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: We examine two members of the NGC 4065 group of galaxies: a bent-doublea.k.a. wide angle tail radio source and an HI deficient spiral galaxy. Modelsof the X-ray emitting intragroup gas and the bent-double radio source, NGC4061, are used to probe the density of intergalactic gas in this group. HIobservations reveal an asymmetric, truncated distribution of neutral gas inspiral galaxy, UGC 07049, and the accompanying radio continuum emission revealsstrong star formation. We examine the effectiveness of ram pressure strippingas a gas removal mechanism and find that it alone cannot account for the HIdeficiency that is observed in UGC 07049 unless this galaxy has passed throughthe core of the group with a velocity of ~800 km-s. A combination of tidal andram pressure stripping are necessary to produce the HI deficiency and asymmetryin this galaxy.



Autor: E. Freeland, C. Sengupta, J. H. Croston

Fuente: https://arxiv.org/







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