Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Mundt, Reinhard"'
Autor:
Arulanantham, Nicole A., Herbst, William, Cody, Ann Marie, Stauffer, John R., Rebull, Luisa M., Agol, Eric, Windemuth, Diana, Marengo, Massimo, Winn, Joshua N., Hamilton, Catrina M., Mundt, Reinhard, Johns-Krull, Christopher M., Gutermuth, Robert A.
Publikováno v:
The Astronomical Journal, 151:90 (16 pp), 2016 April
We examine the light and color evolution of the T Tauri binary KH 15D through photometry obtained at wavelengths between 0.55 and 8.0 $\mu$m. The data were collected with ANDICAM on the 1.3 m SMARTS telescope at Cerro-Tololo Inter-American Observator
Externí odkaz:
http://arxiv.org/abs/1602.01877
Autor:
Rodriguez-Ledesma, Maria V., Mundt, Reinhard, Ibrahimov, Mansur, Messina, Sergio, Parihar, Padmakar, Hessman, Frederic, de Oliveira, Catarina Alves, Herbst, William
We have investigated the nature of the variability of CHS7797, an unusual periodic variable in the Orion Nebula Cluster. An extensive I-band photometric data set of CHS7797 was compiled between 2004-2010 using various telescopes. Further optical data
Externí odkaz:
http://arxiv.org/abs/1207.2494
Autor:
Hamilton, Catrina M., Johns-Krull, Christopher M., Mundt, Reinhard, Herbst, William, Winn, Joshua N.
We have obtained 48 high resolution echelle spectra of the pre-main sequence eclipsing binary system KH~15D (V582 Mon, P = 48.37 d, $e$ $\sim$ 0.6, M$_{A}$ = 0.6 M$_{\odot}$, M$_{B}$ = 0.7 M$_{\odot}$). The eclipses are caused by a circumbinary disk
Externí odkaz:
http://arxiv.org/abs/1204.1334
Autor:
Herbst, William, LeDuc, Katherine, Hamilton, Catrina M., Winn, Joshua N., Ibrahimov, Mansur, Mundt, Reinhard, Johns-Krull, Christopher M.
Photometry of the unique pre-main sequence binary system KH 15D is presented, spanning the years 2005-2010. This system has exhibited photometric variations and eclipses over the last 50 years caused by a precessing circumbinary disk. Advancement of
Externí odkaz:
http://arxiv.org/abs/1007.4212
Angular momentum loss requires magnetic interaction between the forming star and both the circumstellar disk and the magnetically driven outflows. In order to test these predictions many authors have investigated a rotation-disk connection in pre-mai
Externí odkaz:
http://arxiv.org/abs/1001.5141
Autor:
Mundt, Reinhard, Hamilton, Catrina M., Herbst, William, Johns-Krull, Christopher M., Winn, Joshua N.
We present evidence that the spectroscopically identified bipolar jets of the pre-main sequence binary KH 15D are a common product of the whole binary system, rather than being launched from either star individually. They may be launched from the inn
Externí odkaz:
http://arxiv.org/abs/0912.1740
We present the combined results of three photometric monitoring campaigns targeting very low mass (VLM) stars and brown dwarfs in the young open cluster IC4665 (age ~40 Myr). In all three runs, we observe ~100 cluster members, allowing us for the fir
Externí odkaz:
http://arxiv.org/abs/0908.2811
Rotational studies at a variety of ages and masses are important for constraining the angular momentum evolution of young stellar objects (YSO). Of particular interest are the very low mass (VLM) stars and brown dwarfs (BDs), because of the significa
Externí odkaz:
http://arxiv.org/abs/0906.2419
Autor:
Herbst, William, Hamilton, Catrina M., LeDuc, Katherine, Winn, Joshua N., Johns-Krull, Christopher M., Mundt, Reinhard, Ibrahimov, Mansur
We show that grains have grown to ~mm size (sand sized) or larger in the terrestrial zone (within ~3 AU) of the protoplanetary disk surrounding the 3 Myr old binary star KH 15D. We also argue that the reflected light in the system reaches us by back
Externí odkaz:
http://arxiv.org/abs/0803.1782
Publikováno v:
Mon.Not.Roy.Astron.Soc.367:407-411,2006
We present simultaneous UV-G-R-I monitoring of 19 M dwarfs that revealed a huge flare on the M9 dwarf 2MASSW J1707183+643933 with an amplitude in the UV of at least 6 magnitudes. This is one of the strongest detections ever of an optical flare on an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512185