IC 4329A, also commonly referred as PGC 49051 is a Seyfert galaxy in the constellation of Centaurus. Its distance from Earth is 206 million light years. The declination of IC 4329A is approximately -30.2 degrees and was first discovered by Wilson A. S. & Penston, M. V. in 1979.
Characteristics This galaxy was first described by using an X-ray spectro-polarimetric analysis as an extremely bright Seyfert galaxy on account of the width of H-alpha (13,000 km/sec) and the high H-beta luminosity. This galaxy is described as an edge-on spiral galaxy close to elliptical galaxy IC 4329, which is the brightest galaxy inside a galaxy cluster in the Centaurus region. It has a dust lane displaying extreme polarization. Additionally, dust components in IC 4329A have been detected mainly in the interstellar medium of its host galaxy as well as its nuclear component located in the active torus. The supermassive black hole in IC 4329A is estimated to be 6.8+1.2−1.1 × 107 M☉.
Ultraviolet Imaging with AstroSat/UVIT In 2017, the region around IC 4329A was observed using the Ultra-Violet Imaging Telescope (UVIT) aboard AstroSat. The observations, taken in near-ultraviolet (NUV) and far-ultraviolet (FUV) bands, revealed 4,437 sources in NUV and 456 in FUV.
Nearby galaxies The closest galaxy next to IC 4329A is IC 4329 with the group of IC 4327, 5302, 5304, 5298, PGC 159482 and PGC 48950.
References
External links https://ui.adsabs.harvard.edu https://www.czsky.eu/deepskyobject/IC4329A/info