Zobrazeno 1 - 10
of 238
pro vyhledávání: '"Brickhouse, N"'
The detailed design and operation of the Smithsonian Astrophysical Observatory's EBIT are described for the first time, including recent design upgrades that have led to improved system stability and greater user control, increasing the scope of poss
Externí odkaz:
http://arxiv.org/abs/2401.13088
Autor:
Brickhouse, N., Ferland, G. J., Milam, S., Sciamma-O'Brien, E., Smale, A., Spyrou, A., Stancil, P. C., Storrie-Lombardi, L., Wahlgren, G. M.
This report provides detailed findings on the critical laboratory astrophysics data needs that are required to maximize the scientific return for NASA's current and near-term planned astrophysics missions. It also provides prioritized rankings on sai
Externí odkaz:
http://arxiv.org/abs/2001.11361
Autor:
Fabbiano, G., Elvis, M., Accomazzi, A., Berriman, G. B., Brickhouse, N., Bose, S., Carrera, D., Chilingarian, I., Civano, F., Czerny, B., D'Abrusco, R., Diemer, B., Drake, J., Meibody, R. Emami, Farah, J. R., Fazio, G. G., Feigelson, E., Fornasini, F., Gallagher, Jay, Grindlay, J., Hernquist, L., James, D. J., Karovska, M., Kashyap, V., Kim, D. -W., Lacy, G. M., Lazio, J., Lusso, E., Maksym, W. P., Galarza, R. Martinez, Mazzarella, J., Ntampaka, M., Risaliti, G., Sanders, D., Scoville, N., Shapiro, I., Siemiginowska, A., Smth, A., Smith, S., Szentgyorgyi, A., Tacchella, S., Thakar, A., Tolls, V., Vrtilek, S., Wilkes, B., Wilner, D., Willner, S. P., Wolk, S. J., Zhao, J. -H.
We write in response to the call from the 2020 Decadal Survey to submit white papers illustrating the most pressing scientific questions in astrophysics for the coming decade. We propose exploration as the central question for the Decadal Committee's
Externí odkaz:
http://arxiv.org/abs/1903.06634
Publikováno v:
A&A 578, A15 (2015)
We use the best available X-ray data from the intermediate polar EX Hydrae to study the cooling-flow model often applied to interpret the X-ray spectra of these accreting magnetic white dwarf binaries. First, we resolve a long-standing discrepancy be
Externí odkaz:
http://arxiv.org/abs/1504.01342
Autor:
Günther, H. M., Brickhouse, N. S., Dupree, A. K., Wolk, S. J., Schneider, P. C., Luna, G. J. M.
Classical T Tauri stars (CTTS) are young (< 10 Myr), cool stars that actively accrete matter from a disk. They show strong, broad and asymmetric, atomic FUV emission lines. Neither the width, nor the line profile is understood. Likely, different mech
Externí odkaz:
http://arxiv.org/abs/1408.3049
Time-domain spectroscopy of the classical accreting T Tauri star, TW Hya, covering a decade and spanning the far UV to the near-infrared spectral regions can identify the radiation sources, the atmospheric structure produced by accretion,and properti
Externí odkaz:
http://arxiv.org/abs/1405.2935
Autor:
Brickhouse, N. S., Cranmer, S. R., Dupree, A. K., Günther, H. M., Luna, G. J. M., Wolk, S. J.
Publikováno v:
ApJ, 760, 2000, L21
Diagnostics of electron temperature (T_e), electron density (n_e), and hydrogen column density (N_H) from the Chandra High Energy Transmission Grating spectrum of He-like Ne IX in TW Hydrae (TW Hya), in conjunction with a classical accretion model, a
Externí odkaz:
http://arxiv.org/abs/1211.1710
Autor:
Poppenhaeger, K., Guenther, H. M., Beiersdorfer, P., Brickhouse, N. S., Carter, J. A., Hudson, H. S., Kowalski, A., Lalitha, S., Miceli, M., Wolk, S. J.
Publikováno v:
Astronomical Notes, Vol.334, Issue 1-2, p.10, 2013
This contribution summarizes the splinter session "Non-thermal processes in coronae and beyond" held at the Cool Stars 17 workshop in Barcelona in 2012. It covers new developments in high energy non-thermal effects in the Earth's exosphere, solar and
Externí odkaz:
http://arxiv.org/abs/1210.2960
We describe the latest release of AtomDB, version 2.0.2, a database of atomic data and a plasma modeling code with a focus on X-ray astronomy. This release includes several major updates to the fundamental atomic structure and process data held withi
Externí odkaz:
http://arxiv.org/abs/1207.0576
We report the results from the temporal and spectral analysis of an XMM-Newton observation of Nova Centauri 1986 (V842 Cen). We detect a period at 3.51$\pm$0.4 h in the EPIC data and at 4.0$\pm$0.8 h in the OM data. The X-ray spectrum is consistent w
Externí odkaz:
http://arxiv.org/abs/1203.4804