Zobrazeno 1 - 10
of 238
pro vyhledávání: '"Hoard, D. W."'
Autor:
Littlefield, Colin, Hoard, D. W., Garnavich, Peter, Szkody, Paula, Mason, Paul A., Scaringi, Simone, Ilkiewicz, Krystian, Kennedy, Mark R., Rappaport, Saul A., Jayaraman, Rahul
There have been relatively few published long-duration, uninterrupted light curves of magnetic cataclysmic variable stars in which the accreting white dwarf's rotational frequency is slightly desynchronized from the binary orbital frequency (asynchro
Externí odkaz:
http://arxiv.org/abs/2205.02863
An Earth-like exoplanet orbiting a white dwarf would be exposed to different UV environments than Earth, influencing both its atmospheric photochemistry and UV surface environment. Using a coupled 1D climate-photochemistry code we model atmospheres o
Externí odkaz:
http://arxiv.org/abs/1806.11200
Autor:
Hoard, D. W., Long, Knox S., Howell, Steve B., Wachter, Stefanie, Brinkworth, Carolyn S., Knigge, Christian, Drew, J. E., Szkody, Paula, Kafka, S., Belle, Kunegunda, Ciardi, David R., Froning, Cynthia S., van Belle, Gerard T., Pretorius, M. L.
Novalike cataclysmic variables have persistently high mass transfer rates and prominent steady state accretion disks. We present an analysis of infrared observations of twelve novalikes obtained from the Two Micron All Sky Survey, the Spitzer Space T
Externí odkaz:
http://arxiv.org/abs/1403.6601
Autor:
Deacon, N. R., Hoard, D. W., Magnier, E. A., Jadhav, Y. S., Huber, M., Chambers, K. C., Flewelling, H., Hodapp, K. W., Kaiser, N., Kudritzki, R. P., Metcalfe, N., Waters, C.
Nova Delphini 2013 was identified on the 14th of August 2013 and eventually rose to be a naked eye object. We sought to study the behaviour of the object in the run-up to outburst and to compare it to the pre-outburst photometric characteristics of o
Externí odkaz:
http://arxiv.org/abs/1402.5968
We have compiled photometric data from the Wide-field Infrared Survey Explorer All Sky Survey and other archival sources for the more than 2200 objects in the original McCook & Sion Catalog of Spectroscopically Identified White Dwarfs. We applied col
Externí odkaz:
http://arxiv.org/abs/1304.7801
Autor:
Debes, John H., Hoard, D. W., Farihi, Jay, Wachter, Stefanie, Leisawitz, David T., Cohen, Martin
We present the discovery with WISE of a significant infrared excess associated with the eclipsing post-common envelope binary SDSSJ 030308.35+005443.7, the first excess discovered around a non-interacting white dwarf+main sequence M dwarf binary. The
Externí odkaz:
http://arxiv.org/abs/1209.5287
Autor:
van Eyken, Julian C., Ciardi, David R., von Braun, Kaspar, Kane, Stephen R., Plavchan, Peter, Bender, Chad F., Brown, Timothy M., Crepp, Justin R., Fulton, Benjamin J., Howard, Andrew W., Howell, Steve B., Mahadevan, Suvrath, Marcy, Geoffrey W., Shporer, Avi, Szkody, Paula, Akeson, Rachel L., Beichman, Charles A., Boden, Andrew F., Gelino, Dawn M., Hoard, D. W., Ramírez, Solange V., Rebull, Luisa M., Stauffer, John R., Bloom, Joshua S., Cenko, S. Bradley, Kasliwal, Mansi M., Kulkarni, Shrinivas R., Law, Nicholas M., Nugent, Peter E., Ofek, Eran O., Poznanski, Dovi, Quimby, Robert M., Walters, Richard, Grillmair, Carl J., Laher, Russ, Levitan, David B., Sesar, Branimir, Surace, Jason A.
Publikováno v:
ApJ 755 (2012) 42
We report observations of a possible young transiting planet orbiting a previously known weak-lined T-Tauri star in the 7-10 Myr old Orion-OB1a/25-Ori region. The candidate was found as part of the Palomar Transient Factory (PTF) Orion project. It ha
Externí odkaz:
http://arxiv.org/abs/1206.1510
We present Herschel Space Observatory photometric observations of the unique, long-period eclipsing binary star Epsilon Aurigae. Its extended spectral energy distribution is consistent with our previously published cool (550 K) dust disk model. We al
Externí odkaz:
http://arxiv.org/abs/1202.6643
Autor:
Girven, J., Brinkworth, C. S., Farihi, J., Gänsicke, B. T., Hoard, D. W., Marsh, T. R., Koester, D.
Spitzer IRAC observations of 15 metal-polluted white dwarfs reveal infrared excesses in the spectral energy distributions of HE 0110-5630, GD 61, and HE 1349-2305. All three of these stars have helium-dominated atmospheres, and their infrared emissio
Externí odkaz:
http://arxiv.org/abs/1202.3784
With the launch of the {\em Wide-field Infrared Survey Explorer} ({\em WISE}), a new era of detecting planetary debris and brown dwarfs around white dwarfs (WDs) has begun with the {\em WISE} InfraRed Excesses around Degenerates (WIRED) Survey. The W
Externí odkaz:
http://arxiv.org/abs/1110.6162