Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Marsh, Thomas R"'
Autor:
Robert, Akshay, Farihi, Jay, Van Eylen, Vincent, Aungwerojwit, Amornrat, Gänsicke, Boris T., Redfield, Seth, Dhillon, Vikram S., Marsh, Thomas R., Swan, Andrew
This paper investigates the frequency of transiting planetary systems around metal-polluted white dwarfs using high-cadence photometry from ULTRACAM and ULTRASPEC on the ground, and space-based observations with TESS. Within a sample of 313 metal-pol
Externí odkaz:
http://arxiv.org/abs/2407.21743
Autor:
Caiazzo, Ilaria, Burdge, Kevin B., Tremblay, Pier-Emmanuel, Fuller, James, Ferrario, Lilia, Gaensicke, Boris T., Hermes, J. J., Heyl, Jeremy, Kawka, Adela, Kulkarni, S. R., Marsh, Thomas R., Mroz, Przemek, Prince, Thomas A., Richer, Harvey B., Rodriguez, Antonio C., van Roestel, Jan, Vanderbosch, Zachary P., Vennes, Stephane, Wickramasinghe, Dayal, Dhillon, Vikram S., Littlefair, Stuart P., Munday, James, Pelisoli, Ingrid, Perley, Daniel, Bellm, Eric C., Breedt, Elme, Brown, Alex J., Dekany, Richard, Drake, Andrew, Dyer, Martin J., Graham, Matthew J., Green, Matthew J., Laher, Russ R., Kerry, Paul, Parsons, Steven G., Riddle, Reed L., Rusholme, Ben, Sahman, Dave I.
Publikováno v:
Nature 620, 61-66 (2023)
White dwarfs, the extremely dense remnants left behind by most stars after their death, are characterised by a mass comparable to that of the Sun compressed into the size of an Earth-like planet. In the resulting strong gravity, heavy elements sink t
Externí odkaz:
http://arxiv.org/abs/2308.07430
Autor:
Hallakoun, Na'ama, Maoz, Dan, Istrate, Alina G., Badenes, Carles, Breedt, Elmé, Gänsicke, Boris T., Jha, Saurabh W., Leibundgut, Bruno, Mannucci, Filippo, Marsh, Thomas R., Nelemans, Gijs, Patat, Ferdinando, Rebassa-Mansergas, Alberto
Planets orbiting close to hot stars experience intense extreme-ultraviolet radiation, potentially leading to atmosphere evaporation and to thermal dissociation of molecules. However, this extreme regime remains mainly unexplored due to observational
Externí odkaz:
http://arxiv.org/abs/2306.08672
Autor:
Burdge, Kevin B., El-Badry, Kareem, Rappaport, Saul, Wong, Tin Long Sunny, Bauer, Evan B., Bildsten, Lars, Caiazzo, Ilaria, Chakrabarty, Deepto, Chickles, Emma, Graham, Matthew J., Kara, Erin, Kulkarni, S. R., Marsh, Thomas R., Nynka, Melania, Prince, Thomas A., Simcoe, Robert A., van Roestel, Jan, Vanderbosch, Zach, Bellm, Eric C., Dekany, Richard G., Drake, Andrew J., Helou, George, Masci, Frank J., Milburn, Jennifer, Riddle, Reed, Rusholme, Ben, Smith, Roger
We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post-common envelope carbon-oxygen (CO) white dwarf, and a
Externí odkaz:
http://arxiv.org/abs/2303.13573
Autor:
Kupfer, Thomas, Korol, Valeriya, Littenberg, Tyson B., Shah, Sweta, Savalle, Etienne, Groot, Paul J., Marsh, Thomas R., Jeune, Maude Le, Nelemans, Gijs, Pala, Anna F., Petiteau, Antoine, Ramsay, Gavin, Steeghs, Danny, Babak, Stanislav
Galactic compact binaries with orbital periods shorter than a few hours emit detectable gravitational waves at low frequencies. Their gravitational wave signals can be detected with the future Laser Interferometer Space Antenna (LISA). Crucially, the
Externí odkaz:
http://arxiv.org/abs/2302.12719
Autor:
Brown, Alex J., Parsons, Steven G., van Roestel, Jan, Rebassa-Mansergas, Alberto, Breedt, Elmé, Dhillon, Vik S., Dyer, Martin J., Green, Matthew J., Kerry, Paul, Littlefair, Stuart P., Marsh, Thomas R., Munday, James, Pelisoli, Ingrid, Sahman, David I., Wild, James F.
Wide-field time-domain photometric sky surveys are now finding hundreds of eclipsing white dwarf plus M dwarf binaries, a population encompassing a wealth of information and potential insight into white dwarf and close binary astrophysics. Precise fo
Externí odkaz:
http://arxiv.org/abs/2302.11392
Autor:
Deshmukh, Kunal, Kupfer, Thomas, Hakala, Pasi, Bauer, Evan B., Berdyugin, Andrei, Bildsten, Lars, Marsh, Thomas R., Mereghetti, Sandro, Piirola, Vilppu
We report the results from follow-up observations of two Roche-lobe filling hot subdwarf binaries with white dwarf companions predicted to have accretion disks. ZTF J213056.71+442046.5 (ZTF J2130) with a 39-minute period and ZTF J205515.98+465106.5 (
Externí odkaz:
http://arxiv.org/abs/2211.12502
Autor:
Burdge, Kevin B., El-Badry, Kareem, Marsh, Thomas R., Rappaport, Saul, Brown, Warren R., Caiazzo, Ilaria, Chakrabarty, Deepto, Dhillon, V. S., Fuller, Jim, Gänsicke, Boris T., Graham, Matthew J., Kara, Erin, Kulkarni, S. R., Littlefair, S. P., Mróz, Przemek, Rodríguez-Gil, Pablo, van Roestel, Jan, Simcoe, Robert A., Bellm, Eric C., Drake, Andrew J., Dekany, Richard G., Groom, Steven L., Laher, Russ R., Masci, Frank J., Riddle, Reed, Smith, Roger M., Prince, Thomas A.
Publikováno v:
Nature 610 467-471 (2022)
In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to achieve these short periods requires the donor star to have undergone sub
Externí odkaz:
http://arxiv.org/abs/2210.01809
Autor:
Burdge, Kevin B., Marsh, Thomas R., Fuller, Jim, Bellm, Eric C., Caiazzo, Ilaria, Chakrabarty, Deepto, Coughlin, Michael W., De, Kishalay, Dhillon, V. S., Graham, Matthew J., guez-Gil, Pablo Rodrí, Jaodand, Amruta D., Kaplan, David L., Kara, Erin, Kong, Albert K. H., Kulkarni, S. R., Li, Kwan-Lok, Littlefair, S. P., Majid, Walid A., Mróz, Przemek, Pearlman, Aaron B., Phinney, E. S., van Roestel, Jan, Simcoe, Robert A., Andreoni, Igor, Drake, Andrew J., Dekany, Richard G., Duev, Dmitry A., Kool, Erik C., Mahabal, Ashish A., Medford, Michael S., Riddle, Reed, Prince, Thomas A.
Publikováno v:
Nature 605, 41-45 (2022)
Over a dozen millisecond pulsars are ablating low-mass companions in close binary systems. In the original "black widow", the 8-hour orbital period eclipsing pulsar PSR J1959+2048 (PSR B1957+20), high energy emission originating from the pulsar is ir
Externí odkaz:
http://arxiv.org/abs/2205.02278
Autor:
Hakala, Pasi, Parsons, Steven G., Marsh, Thomas R., Gänsicke, Boris T., Ramsay, Gavin, Schwope, Axel, Hermes, J. J.
We present results from a circular polarimetric survey of candidate detached magnetic white dwarf - M dwarf binaries obtained using the Nordic Optical Telescope, La Palma. We obtained phase resolved spectropolarimetry and imaging polarimetry of seven
Externí odkaz:
http://arxiv.org/abs/2204.09377