PDS 456
PDS 456 is a bright, radio-quiet quasar in the Serpens Cauda constellation , near the border with Ophiuchus. The quasar has a redshift of z = 0.184, corresponding to a distance of around 700 Mpc , which makes it one of the closest quasars. The quasar was discovered by a group around Carlos Torros in 1997 as part of the Pico dos Dias survey . Since this quasar is so close and therefore so young, it is suitable for further research, for example to observe the transformation of an ultra- luminous infrared galaxy (ULIRG) into a quasar.
Web links
- PDS 456 on the Frankfurt Quasar Monitoring
- Black hole blows star formation online for a while
Individual evidence
- ↑ C. Martin Gaskell, Andrew J. Benker, Jeffrey S. Campbell, Thomas A. George, Cecelia H. Hedrick, Mary E. Hiller, Elizabeth S. Klimek, Joseph P. Leonard, Shoji Masatoshi, Bradley W. Peterson, Kelly C. Peterson, and Kelly M. Sanders: Optical Variability of the Three Brightest Nearby Quasars . arxiv : astro-ph / 0701005 (English).
- ↑ Carlos AO Torres, Germano R Quast, Roger Coziol, Francisco Jablonski, Ramiro de La Reza, Jacques RD Lepine, Jane Gregorio-Hetem: Discovery of a luminous quasar in the nearby universe . In: IOP Publishing (Ed.): The Astrophysical Journal Letters . October 10, 1997, arxiv : astro-ph / 9707258 (English, also viewed on Google Scholar ).
- ↑ Min Yun, NA Reddy, NZ Scoville, DT Frayer, EI Robson, RPJ Tilanus: Multiwavelength Observations of the Gas-rich Host Galaxy of PDS 456: A New Challenge for the ULIRG-to-QSO Transition Scenario. (pdf) Archived from the original on February 20, 2015 ; accessed on February 20, 2015 .