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Markarian 876

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Galaxy in the constellation Draco
Markarian 876
HST image of Markarian 876.
Observation data (J2000.0 epoch)
ConstellationDraco
Right ascension16 13 57.17
Declination+65° 43′ 09.98″
Redshift0.121090
Heliocentric radial velocity36,302 km/s
Distance1.752 Gly (537.16 Mpc)
Apparent magnitude (V)15.49
Apparent magnitude (B)16.03
Characteristics
TypeE2, Sy1
Size117.72 kiloparsecs (384,000 light-years)
(diameter; 2MASS K-band total isophote)
Other designations
PGC 57553, PG 1613+658, IRAS 16136+6550, RBS 1567, 2E 3624, 2MASX J16135722+6543096

Markarian 876 (Mrk 876) known as PG 1613+658, is an elliptical galaxy located in the constellation of Draco. With a velocity relative to the cosmic microwave background of 36,302 ± 60 kilometers per seconds, the galaxy is located 1.75 billion light years from Earth. It is a Seyfert galaxy.

Characteristics

Markarian 876 is classified as a large galaxy with a distorted morphology. It has tidal tails extending out from the galaxy by more than 50 arcsecs or 85 kiloparsecs (kpc). The structure of the galaxy appears lopsided and complicated with a secondary nucleus or knot of light located 1.6 arcsec west of the main nucleus. A barred spiral galaxy companion is found lying at the same redshift, indicating the peculiar structure in Markarian 876 might be directly caused by a strong gravitational interaction with the object. However the companion galaxy is located 23 arcsecs north and doesn't seem to tidally connect with Markarian 876, therefore the latter's distorted morphology is likely caused by a galaxy merger.

The mass of the black hole in the center of Markarian 876 is estimated to be (2.2 ± 1.0) x 10 Mʘ based on an optical reverberation campaign.

An emission line is found connected with the source of the galaxy with a rest-frame energy of 4.80-0.04 keV.

References

  1. ^ "By Name NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-10-08.
  2. ^ Hutchings, J. B.; Neff, S. G. (July 1992). "Optical imaging of QSOs with 0.5 arcsec resolution". The Astronomical Journal. 104 (1): 1. Bibcode:1992AJ....104....1H. doi:10.1086/116216. ISSN 0004-6256.
  3. Alloin, D.; Barvainis, R.; Gordon, M.A.; Antonucci, R.R.J. (1992). "CO emission from radio quiet quasars - New detections support a thermal origin for the FIR emission". Astronomy & Astrophysics. 265 (2): 429–436. Bibcode:1992A&A...265..429A. ISSN 0004-6361.
  4. Landt, Hermine; Mitchell, Jake A. J.; Ward, Martin J.; Mercatoris, Paul; Pott, Jörg-Uwe; Horne, Keith; Hernández Santisteban, Juan V.; Malhotra, Daksh; Cackett, Edward M.; Goad, Michael R.; Romero Colmenero, Encarni; Winkler, Hartmut (March 2023). "A Complex Dust Morphology in the High-luminosity AGN Mrk 876". The Astrophysical Journal. 945 (1): 62. arXiv:2302.01678. Bibcode:2023ApJ...945...62L. doi:10.3847/1538-4357/acb92d. ISSN 0004-637X.
  5. Bottacini, Eugenio; Orlando, Elena; Greiner, Jochen; Ajello, Marco; Moskalenko, Igor; Persic, Massimo (17 December 2014). "An extreme gravitationally redshifted iron line at 4.8 KeV in Mrk 876". The Astrophysical Journal. 798 (1): L14. arXiv:1412.3112. doi:10.1088/2041-8205/798/1/L14. ISSN 2041-8213.

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