Einstein observations of NGC 4438 - Dynamical ablation of gas in the Virgo Cluster

Details Einstein observations of NGC 4438 - Dynamical ablation of gas in the Virgo Cluster Einstein observations of NGC 4438 - Dynamical ablation of gas in the Virgo Cluster

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273l...7k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 273, Oct. 1, 1983, p. L7-L9.

Astronomy and Astrophysics

Astrophysics

49

Interstellar Gas, Peculiar Galaxies, Virgo Galactic Cluster, X Ray Sources, Ablation, Astronomical Models, Disk Galaxies, Heao 2, Luminosity, Radio Galaxies

Scientific paper

High-resolution observations are presented of the X-ray emission of the peculiar galaxy NGC 4438 in the center of the Virgo Cluster. The observations, made with the High Resolution Imager at the Einstein Observatory, show a compact source (size less than 10 arcsec) near the center of the galaxy with a luminosity L(x) = 1.5 x 10 to the 39th ergs/sec (0.1-2 keV), and an extended region of emission about 3 kpc in size and with a luminosity L(x) = 3 x 10 to the 39th ergs/sec situated asymmetrically to the NW of the galaxy. The asymmetry is similar to the asymmetry in the radio emission and could be due to ram pressure sweeping of the interstellar gas from the disk of the galaxy.

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