Zobrazeno 1 - 10
of 182
pro vyhledávání: '"MEDVEDEV, PAVEL"'
We report the discovery of a short, large amplitude X-ray flare from AT2019vcb (aka Tormund), a tidal disruption event at $z=0.088$. The discovery is based on the data from the SRG/eROSITA X-ray telescope which happened to observe the source seven mo
Externí odkaz:
http://arxiv.org/abs/2409.16908
Autor:
Galiullin, Ilkham, Rodriguez, Antonio C., Kulkarni, Shrinivas R., Sunyaev, Rashid, Gilfanov, Marat, Bikmaev, Ilfan, Yungelson, Lev, van Roestel, Jan, Gänsicke, Boris T., Khamitov, Irek, Szkody, Paula, El-Badry, Kareem, Suslikov, Mikhail, Prince, Thomas A., Buntov, Mikhail, Caiazzo, Ilaria, Gorbachev, Mark, Graham, Matthew J., Gumerov, Rustam, Irtuganov, Eldar, Laher, Russ R., Medvedev, Pavel, Riddle, Reed, Rusholme, Ben, Sakhibullin, Nail, Sklyanov, Alexander, Vanderbosch, Zachary P.
Cataclysmic variables (CVs) that have evolved past the period minimum during their lifetimes are predicted to be systems with a brown dwarf donor. While population synthesis models predict that around $\approx 40-70\%$ of the Galactic CVs are post-pe
Externí odkaz:
http://arxiv.org/abs/2401.04178
Publikováno v:
Astronomy Letters, 2022, Vol. 48, 12, pp. 735-754
We present the results of our search for highly variable active galactic nuclei (AGNs) the X-ray flux from which changed by more than an order of magnitude during the SRG/eROSITA all-sky survey. Using the eROSITA data obtained in the period from Dece
Externí odkaz:
http://arxiv.org/abs/2309.11266
Autor:
Rodriguez, Antonio C., Galiullin, Ilkham, Gilfanov, Marat, Kulkarni, Shrinivas R., Khamitov, Irek, Bikmaev, Ilfan, van Roestel, Jan, Yungelson, Lev, El-Badry, Kareem, Sunayev, Rashid, Prince, Thomas A., Buntov, Mikhail, Caiazzo, Ilaria, Drake, Andrew, Gorbachev, Mark, Graham, Matthew J., Gumerov, Rustam, Irtuganov, Eldar, Laher, Russ R., Masci, Frank J., Medvedev, Pavel, Purdum, Josiah, Sakhibullin, Nail, Sklyanov, Alexander, Smith, Roger, Szkody, Paula, Vanderbosch, Zachary P.
AM CVn systems are ultra-compact binaries where a white dwarf accretes from a helium-rich degenerate or semi-degenerate donor. Some AM CVn systems will be among the loudest sources of gravitational waves for the upcoming Laser Interferometer Space An
Externí odkaz:
http://arxiv.org/abs/2306.13133
Autor:
Uskov, Grigory, Sazonov, Sergey, Zaznobin, Igor, Burenin, Rodion, Gilfanov, Marat, Medvedev, Pavel, Sunyaev, Rashid, Krivonos, Roman, Filippova, Ekaterina, Khorunzhev, Georgii, Eselevich, Maksim
Publikováno v:
Astronomy Letters, 2023, Vol. 49, No. 2
We present the results of our identification of 14 X-ray sources detected in the eastern Galactic sky ($0
Externí odkaz:
http://arxiv.org/abs/2306.08646
Autor:
Uskov, Grigory, Zaznobin, Igor, Sazonov, Sergey, Semena, Andrey, Gilfanov, Marat, Burenin, Rodion, Eselevich, Maksim, Krivonos, Roman, Lyapin, Alexander, Medvedev, Pavel, Khorunzhev, Georgii, Sunyaev, Rashid
Publikováno v:
Astronomy Letters, 2022, Vol. 48, No. 2
We present the results of our identification of 17 X-ray sources detected in the 4-12 keV energy range by the Mikhail Pavlinsky ART-XC telescope during the first year of the SRG all-sky survey. Three of them have been discovered by the ART-XC telesco
Externí odkaz:
http://arxiv.org/abs/2208.10963
Autor:
Medvedev, Pavel
Dual phase magnesia-zirconia ceramics were developed, characterized, and evaluated as a potential matrix material for use in light water reactor inert matrix fuel intended for the disposition of plutonium and minor actinides. Ceramics were fabricated
Externí odkaz:
http://hdl.handle.net/1969.1/1383
Autor:
Yao, Yuhan, Lu, Wenbin, Guolo, Muryel, Pasham, Dheeraj R., Gezari, Suvi, Gilfanov, Marat, Gendreau, Keith C., Harrison, Fiona, Cenko, S. Bradley, Kulkarni, S. R., Miller, Jon M., Walton, Dominic J., García, Javier A., van Velzen, Sjoert, Alexander, Kate D., Miller-Jones, James C. A., Nicholl, Matt, Hammerstein, Erica, Medvedev, Pavel, Stern, Daniel, Ravi, Vikram, Sunyaev, R., Bloom, Joshua S., Graham, Matthew J., Kool, Erik C., Mahabal, Ashish A., Masci, Frank J., Purdum, Josiah, Rusholme, Ben, Sharma, Yashvi, Smith, Roger, Sollerman, Jesper
We present X-ray, UV, optical, and radio observations of the nearby ($\approx78$ Mpc) tidal disruption event (TDE) AT2021ehb/ZTF21aanxhjv during its first 430 days of evolution. AT2021ehb occurs in the nucleus of a galaxy hosting a $\approx 10^{7}\,M
Externí odkaz:
http://arxiv.org/abs/2206.12713
Autor:
Yao, Yuhan, Ho, Anna Y. Q., Medvedev, Pavel, J., Nayana A., Perley, Daniel A., Kulkarni, S. R., Chandra, Poonam, Sazonov, Sergey, Gilfanov, Marat, Khorunzhev, Georgii, Khatami, David K., Sunyaev, Rashid
We present AT2020mrf (SRGe J154754.2$+$443907), an extra-galactic ($z=0.1353$) fast blue optical transient (FBOT) with a rise time of $t_{g,\rm rise}=3.7$ days and a peak luminosity of $M_{g,\rm peak}=-20.0$. Its optical spectrum around peak shows a
Externí odkaz:
http://arxiv.org/abs/2112.00751
Autor:
Reusch, Simeon, Stein, Robert, Kowalski, Marek, van Velzen, Sjoert, Franckowiak, Anna, Lunardini, Cecilia, Murase, Kohta, Winter, Walter, Miller-Jones, James C. A., Kasliwal, Mansi M., Gilfanov, Marat, Garrappa, Simone, Paliya, Vaidehi S., Ahumada, Tomas, Anand, Shreya, Barbarino, Cristina, Bellm, Eric C., Brinnel, Valery, Buson, Sara, Cenko, S. Bradley, Coughlin, Michael W., De, Kishalay, Dekany, Richard, Frederick, Sara, Gal-Yam, Avishay, Gezari, Suvi, Giroletti, Marcello, Graham, Matthew J., Karambelkar, Viraj, Kimura, Shigeo S., Kong, Albert K. H., Kool, Erik C., Laher, Russ R., Medvedev, Pavel, Necker, Jannis, Nordin, Jakob, Perley, Daniel A., Rigault, Mickael, Rusholme, Ben, Schulze, Steve, Schweyer, Tassilo, Singer, Leo P., Sollerman, Jesper, Strotjohann, Nora Linn, Sunyaev, Rashid, van Santen, Jakob, Walters, Richard, Zhang, B. Theodore, Zimmerman, Erez
Publikováno v:
Phys. Rev. Lett. 128, 221101 (2022)
The origins of the high-energy cosmic neutrino flux remain largely unknown. Recently, one high-energy neutrino was associated with a tidal disruption event (TDE). Here we present AT2019fdr, an exceptionally luminous TDE candidate, coincident with ano
Externí odkaz:
http://arxiv.org/abs/2111.09390