Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Hauschildt , Peter H."'
Autor:
Basu, Judhajeet, Kumar, Ravi, Anupama, G. C., Barway, Sudhanshu, Hauschildt, Peter H., Chamoli, Shatakshi, Swain, Vishwajeet, Bhalerao, Varun, Karambelkar, Viraj R., Kasliwal, Mansi M., Das, Kaustav K., Andreoni, Igor, Singh, Avinash, Teja, Rishabh S.
We present a detailed analysis of a slow classical nova in M31 exhibiting multiple peaks in its light curve. Spectroscopic and photometric observations were used to investigate the underlying physical processes. Shock-induced heating events resulting
Externí odkaz:
http://arxiv.org/abs/2411.18215
Publikováno v:
A&A 664, L9 (2022)
An activity indicator, which can provide a robust quantitative mapping between the stellar activity and the physical properties of its atmosphere, is important in exploring the physics of activity across spectral types. But the common activity indica
Externí odkaz:
http://arxiv.org/abs/2208.04217
Publikováno v:
A&A 655, A113 (2021)
Due to their wide wavelength coverage across the millimetre to centimetre (mm - cm) range and their increased sensitivity, modern interferometric arrays facilitate observations of the thermal and non-thermal emission from different stellar atmospheri
Externí odkaz:
http://arxiv.org/abs/2110.13339
Autor:
Hauschildt, Peter H., Baron, E.
3D detailed radiative transfer is computationally taxing, since the solution of the radiative transfer equation involves traversing the six dimensional phase space of the 3D domain. With modern supercomputers the hardware available for wallclock spee
Externí odkaz:
http://arxiv.org/abs/2102.01734
Autor:
Jack, Dennis, Schröder, Klaus-Peter, Eenens, Philippe, Wolter, Uwe, González-Pérez, José Nicolás, Schmitt, Jürgen H. M. M., Hauschildt, Peter H.
With our robotic 1.2 m TIGRE telescope, we were able to obtain eight optical spectra with intermediate resolution (R = 20,000) of the Nova V659 Sct during different phases of its outburst. We present a list of the lines found in the Nova spectra. The
Externí odkaz:
http://arxiv.org/abs/2006.14052
The high energy radiation environment around M dwarf stars strongly impacts the characteristics of close-in exoplanet atmospheres, but these wavelengths are difficult to observe due to geocoronal and interstellar contamination. On account of these ob
Externí odkaz:
http://arxiv.org/abs/1812.06159
We present the results of local, vertically stratified, radiation magnetohydrodynamic shearing box simulations of magnetorotational instability (MRI) turbulence for a (hydrogen poor) composition applicable to accretion disks in AM CVn type systems. M
Externí odkaz:
http://arxiv.org/abs/1803.04381
Autor:
Friesen, Brian, Baron, E., Parrent, Jerod T., Thomas, R. C., Branch, David, Nugent, Peter, Hauschildt, Peter H., Foley, Ryan J., Wright, Darryl E., Pan, Yen-Chen, Filippenko, Alexei V., Clubb, Kelsey I., Silverman, Jeffrey M., Maeda, Keiichi, Shivvers, Isaac, Kelly, Patrick L., Cohen, Daniel P., Rest, Armin, Kasen, Daniel
We present optical spectra of the nearby Type Ia supernova SN 2011fe at 100, 205, 311, 349, and 578 days post-maximum light, as well as an ultraviolet spectrum obtained with Hubble Space Telescope at 360 days post-maximum light. We compare these obse
Externí odkaz:
http://arxiv.org/abs/1607.04784
Autor:
Santisteban, Juan V. Hernández, Knigge, Christian, Littlefair, Stuart P., Breton, Rene P., Dhillon, Vikram S., Gänsicke, Boris T., Marsh, Thomas R., Pretorius, Magaretha L., Southworth, John, Hauschildt, Peter H.
Brown dwarfs and giant planets orbiting close to a host star are subjected to significant irradiation that can modify the properties of their atmospheres. In order to test the atmospheric models that are used to describe these systems, it is necessar
Externí odkaz:
http://arxiv.org/abs/1605.07132
We investigate the frequency of high carbon-to-oxygen (C/O $= 0.9$) M dwarf stars in the solar neighbourhood. Using synthetic spectra, we find that such M dwarfs would have weaker TiO bands relative to hydride features. Similar weakening has already
Externí odkaz:
http://arxiv.org/abs/1510.06985