Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Aufdenberg, Jason P."'
The large, faint H$\alpha$ emission surrounding the early B-star binary Spica has been used to constrain the total hydrogen recombination rate of the nebula and indirectly probe the Lyman continuum luminosity of the primary star. Early analysis sugge
Externí odkaz:
http://arxiv.org/abs/2108.02820
Autor:
Borgniet, Simon, Kervella, Pierre, Nardetto, Nicolas, Gallenne, Alexandre, Mérand, Antoine, Anderson, Richard I., Aufdenberg, Jason, Breuval, Louise, Gieren, Wolfgang, Hocdé, Vincent, Javanmardi, Benham, Lagadec, Eric, Pietrzyński, Grzegorz, Trahin, Boris
Publikováno v:
A&A 631, A37 (2019)
Accurate radial velocities ($v_{\rm rad}$) of Cepheids are mandatory within the context of distance measurements via the Baade-Wesselink technique. The most common $v_{\rm rad}$ derivation method consists in cross-correlating the observed spectrum wi
Externí odkaz:
http://arxiv.org/abs/1908.02059
Autor:
White, Jacob Aaron, Aufdenberg, Jason, Boley, Aaron C., Devlin, Mark, Hauschildt, Peter, Hughes, Anna G., Hughes, A. Meredith, Mason, Brian, Matthews, Brenda, Moór, Attila, Mroczkowski, Tony, Romero, Charles, Sievers, Jonathan, Stanchfield, Sara, Tapia, Francisco, Wilner, David J.
Modeling the submillimeter to centimeter emission of stars is challenging due to a lack of sensitive observations at these long wavelengths. We launched an ongoing campaign to obtain new observations entitled Measuring the Emission of Stellar Atmosph
Externí odkaz:
http://arxiv.org/abs/1903.03481
Autor:
White, Jacob Aaron, Aufdenberg, Jason, Boley, Aaron C., Hauschildt, Peter, Hughes, A. Meredith, Matthews, Brenda, Moór, Attila, Wilner, David J.
Our understanding of stellar atmospheres and our ability to infer architectures of extrasolar planetary systems rely on understanding the emission of stars at submillimeter to centimeter wavelengths. In this chapter we describe how unconstrained stel
Externí odkaz:
http://arxiv.org/abs/1810.06565
Autor:
White, Jacob Aaron, Aufdenberg, Jason, Boley, Aaron, Hauschildt, Peter, Hughes, A. Meredith, Matthews, Brenda, Wilner, David J.
In the early stages of planet formation, small dust grains grow to become mm sized particles in debris disks around stars. These disks can in principle be characterized by their emission at submillimeter and millimeter wavelengths. Determining both t
Externí odkaz:
http://arxiv.org/abs/1804.10206
To fully understand the Be star phenomenon, one must have a reasonable degree of knowledge about the star beneath the disk, which is often found to be rapidly rotating. Rapid rotation complicates modelling because fundamental properties like the stel
Externí odkaz:
http://arxiv.org/abs/1411.1673
Autor:
Thomas, Joshua D., Witt, Adolf N., Aufdenberg, Jason P., Bjorkman, J. E., Dahlstrom, Julie A., Hobbs, L. M., York, Donald G.
In this paper we analyse a set of 33 optical spectra, which were acquired with the ARCES echelle spectrograph (R = 38,000) on the 3.5-m telescope at the Apache Point Observatory. We examine the H{\alpha} profile in each of these observations in order
Externí odkaz:
http://arxiv.org/abs/1212.5735
Autor:
Kraus, Stefan, Monnier, John D., Che, Xiao, Schaefer, Gail H., Touhami, Yamina, Gies, Douglas R., Aufdenberg, Jason, Baron, Fabien, Thureau, Nathalie, Brummelaar, Theo A., McAlister, Harold, Turner, Nils H., Sturmann, Judit, Sturmann, Laszlo
Using CHARA and VLTI near-infrared spectro-interferometry with hectometric baseline lengths (up to 330m) and with high spectral resolution (up to 12000), we studied the gas distribution and kinematics around two classical Be stars. The combination of
Externí odkaz:
http://arxiv.org/abs/1109.3447
Autor:
Thomas, Joshua D., Witt, Adolf N., Aufdenberg, Jason P., Bjorkman, Jon E., Dahlstrom, Julie A., Federman, Steven R., Hobbs, Lew M., Vijh, Uma P., York, Donald G.
In this paper we examine the profiles of the complex Na I D-lines in the Red Rectangle. The spectra were acquired with the ARCES \'{e}chelle spectrograph R = 38,000 on the 3.5-m telescope at the Apache Point Observatory. Additional spectra taken with
Externí odkaz:
http://arxiv.org/abs/1107.4961
Autor:
Orosz, Jerome A., McClintock, Jeffrey E., Aufdenberg, Jason P., Remillard, Ronald A., Reid, Mark J., Narayan, Ramesh, Gou, Lijun
Cygnus X-1 is a binary star system that is comprised of a black hole and a massive giant companion star in a tight orbit. Building on our accurate distance measurement reported in the preceding paper, we first determine the radius of the companion st
Externí odkaz:
http://arxiv.org/abs/1106.3689