Astronomy:SGR J1745−2900
From HandWiki
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 17h 45m 40.16s |
| Declination | −29° 00' 29.8"' |
| Apparent magnitude (V) | ? |
| Database references | |
| SIMBAD | data |
| Other designations | |
PSR J1745−2900 | |
SGR J1745−2900, or PSR J1745−2900, is the first-discovered magnetar orbiting the black hole Sagittarius A*, in the center of the Milky Way.[1][2] The magnetar was discovered in 2013 using the Effelsberg 100-m Radio Telescope, the Nancay Decimetric Radio Telescope, and the Jodrell Bank Lovell Telescope. The magnetar has a period of 3.76 s and a magnetic flux density of ~ 1010 T (1014 G). The magnetar is 0.33 ly from the central black hole.
The object offers an unparalleled tool for probing the ionized interstellar medium (ISM) toward the Galactic Center (GC),[3] and a possible way to test quantum gravity effects.[4]
References
- ↑ Kennea, J. A. et al. (20 June 2013). "DISCOVERY OF A NEW SOFT GAMMA REPEATER, SGR J1745–29, NEAR SAGITTARIUS A*". The Astrophysical Journal 770 (2): L24. doi:10.1088/2041-8205/770/2/L24. Bibcode: 2013ApJ...770L..24K.
- ↑ Mori, Kaya et al. (20 June 2013). "DISCOVERY OF A 3.76 s TRANSIENT MAGNETAR NEAR SAGITTARIUS A*". The Astrophysical Journal 770 (2): L23. doi:10.1088/2041-8205/770/2/L23. Bibcode: 2013ApJ...770L..23M.
- ↑ Eatough, R. P. et al. (14 August 2013). "A strong magnetic field around the supermassive black hole at the centre of the Galaxy". Nature 501 (7467): 391–394. doi:10.1038/nature12499. PMID 23945588. Bibcode: 2013Natur.501..391E.
- ↑ Pen, U.-L.; Broderick, A. E. (29 October 2014). "Possible astrophysical observables of quantum gravity effects near black holes". Monthly Notices of the Royal Astronomical Society 445 (4): 3370–3373. doi:10.1093/mnras/stu1919. Bibcode: 2014MNRAS.445.3370P.
 |  |
