Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Lin, Dacheng"'
Autor:
Wang, Yanan, Pasham, Dheeraj R., Altamirano, Diego, Gurpide, Andres, Segura, Noel Castro, Middleton, Matthew, Ji, Long, del Palacio, Santiago, Guolo, Muryel, Gandhi, Poshak, Zhang, Shuang-Nan, Remillard, Ronald, Lin, Dacheng, Masterson, Megan, Baldi, Ranieri D., Tombesi, Francesco, Miller, Jon M., Zhang, Wenda, Sanna, Andrea
The tidal disruption of a star around a supermassive black hole (SMBH) offers a unique opportunity to study accretion onto a SMBH on a human-timescale. We present results from our 1000+ days NICER, Swift and Chandra monitoring campaign of AT 2019avd,
Externí odkaz:
http://arxiv.org/abs/2312.13543
Autor:
Webb, Natalie A., Barret, Didier, Godet, Olivier, Gupta, Maitrayee, Lin, Dacheng, Quintin, Erwan, Tranin, Hugo
Tidal disruption events (TDEs) occur when a star passes close to a massive black hole, so that the tidal forces of the black hole exceed the binding energy of a star and cause it to be ripped apart. Part of the matter will fall onto the black hole, c
Externí odkaz:
http://arxiv.org/abs/2304.08828
We study a large sample of dwarf galaxies using archival Chandra X-ray observations, with the aim of detecting accreting intermediate-mass black holes (IMBHs). IMBHs are expected to inhabit dwarf galaxies and to produce specific signatures in terms o
Externí odkaz:
http://arxiv.org/abs/2203.10136
It was proposed that a remnant stable magnetar could be formed in a binary neutron-star merger, leading to a fast X-ray transient (FXT) that can last for thousands of seconds. Recently, Xue et al. suggested that CDF-S XT2 was exactly such a kind of s
Externí odkaz:
http://arxiv.org/abs/2201.06754
Autor:
Lin, Dacheng, Godet, Olivier, Webb, Natalie A., Barret, Didier, Irwin, Jimmy A., Komossa, S., Ramirez-Ruiz, Enrico, Maksym, W. Peter, Grupe, Dirk, Carrasco, Eleazar R.
The X-ray source 3XMM~J150052.0+015452 was discovered as a spectacular tidal disruption event candidate during a prolonged ($>11$ yrs) outburst (Lin et al. 2017). It exhibited unique quasi-soft X-ray spectra of characteristic temperature $kT\sim0.3$
Externí odkaz:
http://arxiv.org/abs/2112.11545
Autor:
Lin, Dacheng, Strader, Jay, Romanowsky, Aaron J., Irwin, Jimmy A., Godet, Olivier, Barret, Didier, Webb, Natalie A., Homan, Jeroen, Remillard, Ronald A.
We recently discovered the X-ray/optical outbursting source 3XMM J215022.4-055108. It was best explained as the tidal disruption of a star by an intermediate-mass black hole of mass of a few tens of thousand solar masses in a massive star cluster at
Externí odkaz:
http://arxiv.org/abs/2002.04618
Autor:
Pasham, Dheeraj R., Lin, Dacheng, Saxton, Richard, Jonker, Peter, Kara, Erin, Stone, Nicholas, Maksym, Peter, Auchettl, Katie
The question of how supermassive black holes (SMBHs) grow over cosmic time is a major puzzle in high-energy astrophysics. One promising approach to this problem is via the study of tidal disruption flares (TDFs). These are transient events resulting
Externí odkaz:
http://arxiv.org/abs/1903.02584
Autor:
Lin, Dacheng, Strader, Jay, Carrasco, Eleazar R., Page, Dany, Romanowsky, Aaron J., Homan, Jeroen, Irwin, Jimmy A., Remillard, Ronald A., Godet, Olivier, Webb, Natalie A., Baumgardt, Holger, Wijnands, Rudy, Barret, Didier, Duc, Pierre-Alain, Brodie, Jean P., Gwyn, Stephen D. J.
A unique signature for the presence of massive black holes in very dense stellar regions is occasional giant-amplitude outbursts of multiwavelength radiation from tidal disruption and subsequent accretion of stars that make a close approach to the bl
Externí odkaz:
http://arxiv.org/abs/1806.05692
Autor:
Homan, Jeroen, Steiner, James F., Lin, Dacheng, Fridriksson, Joel K., Remillard, Ronald A., Miller, Jon M., Ludlam, Renee M.
We present NuSTAR observations of the luminous neutron star low-mass X-ray binary (NS LMXB) and Z source GX 5-1. During our three observations made with separations of roughly two days, the source traced out an almost complete Z track. We extract spe
Externí odkaz:
http://arxiv.org/abs/1711.07263
Autor:
Lin, Dacheng, Strader, Jay, Carrasco, Eleazar R., Godet, Olivier, Grupe, Dirk, Webb, Natalie A., Barret, Didier, Irwin, Jimmy A.
The ultrasoft X-ray flare 2XMMi J184725.1-631724 was serendipitously detected in two XMM-Newton observations in 2006 and 2007, with a peak luminosity of 6X10^43 erg/s. It was suggested to be a tidal disruption event (TDE) because its position is cons
Externí odkaz:
http://arxiv.org/abs/1711.04795