Results 31 to 40 of about 3,394,545 (251)

Cyclotron line formation in a relativistic outflow [PDF]

AIP Conference Proceedings, 1996
There is mounting evidence that, if gamma-ray bursters are Galactic in origin, they are located in a Galactic corona at distances greater than 100 kpc. This has created a need to explore new models of cyclotron line formation. In most previous calculations the line-forming region was modeled as a static slab of plasma, optically thin to continuum ...
Isenberg, Michael, Lamb, D. Q., Wang, John C. L.   +2 more
openaire   +2 more sources

Non-LTE LINE FORMATION FOR S I

Odessa Astronomical Publications, 2008
A comprehensive model atom for non-LTE line formation calculations for neutral sulfur in the spectra of F-K stars is presented. All the calculations were made using the 65-level atomic model of S I and Kurucz's atmosphere models with Teff = 5000 ÷ 6500 K,
S. A. Korotin
doaj   +1 more source

Exceptional AGN-driven turbulence inhibits star formation in the 3C 326N radio galaxy [PDF]

, 2014
We detect bright [CII]158μm line emission from the radio galaxy 3C 326N at z=0.09, which shows weak star formation (SFR⊙~yr−1) despite having strong H2 line emission and 2×109M⊙ of molecular gas.
Aalto, Abrahamsson, Alatalo, Alatalo, Alatalo, Aniano, Appleton, Bayet, Bell, Bennett, Best, Biermann, Blitz, Bregman, Béthermin, Cardelli, Carilli, Cicone, Cicone, Combes, Compiègne, Crocker, Dasyra, Dasyra, Dasyra, de Gasperin, de Koff, de Koff, Dicken, Draine, Díaz-Santos, E. Falgarone, F. Boulanger, F. Combes, Fabian, Fabian, Falgarone, Falgarone, Federrath, Federrath, Ferland, Feruglio, Fischer, Förster Schreiber, G. Pineau des Forêts, Gaibler, Gaibler, García-Burillo, Glassgold, Godard, Goldsmith, Goldsmith, González-Alfonso, Gopal, Goto, Gry, Guillard, Guillard, Habart, Hanasz, Helou, Hily-Blant, Indriolo, J. Bernard-Salas, Jaquet, Jubelgas, Kazandjian, Kormendy, Krumholz, Labiano, Laing, Lebouteiller, Lehnert, Lockman, M. D. Lehnert, Ma, Mahony, Maiolino, Malhotra, Malhotra, Martel, Martig, Martig, Mashian, McNamara, Meli, Mittal, Morganti, Morganti, Morganti, Morganti, Müller-Sánchez, Nesvadba, Nesvadba, Ogle, Ogle, Ostriker, P. Guillard, Pety, Poglitsch, Rafferty, Rawlings, Rigopoulou, Rosenberg, Roussel, Sani, Savage, Serra, Sijacki, Silk, Silk, Silk, Spoon, Stacey, Sturm, Thomas, Wagner, Wagner, Willis, Wolfire, Young   +120 more
core   +6 more sources

Resonant Cyclotron Radiation Transfer Model Fits to Spectra from Gamma-Ray Burst GRB870303 [PDF]

, 1999
We demonstrate that models of resonant cyclotron radiation transfer in a strong field (i.e. cyclotron scattering) can account for spectral lines seen at two epochs, denoted S1 and S2, in the Ginga data for GRB870303.
A. Yoshida, Chernenko A., D. Q. Lamb, Daugherty J. K., E. E. Fenimore, I. Wasserman, J. C. L. Wang, Mazets E. P., Mitrofanov I. G., Murakami T., Nagase F., Nishimura O., Nishimura O., P. E. Freeman, Podsiadlowski P., Quashnock J. M., Sturner S. J., T. J. Loredo, T. Murakami, Yoshida A., Yoshida A., Zheleznyakov V. V., Zheleznyakov V. V.   +22 more
core   +2 more sources

LIMpy: A Semianalytic Approach to Simulating Multiline Intensity Maps at Millimeter Wavelengths

The Astrophysical Journal, 2023
Mapping of multiple lines such as the fine-structure emission from [C ii ] (157.7 μ m), [O iii ] (52 and 88.4 μ m), and rotational emission lines from CO are of particular interest for upcoming line intensity mapping (LIM) experiments at millimeter ...
Anirban Roy, Dariannette Valentín-Martínez, Kailai Wang, Nicholas Battaglia, Alexander van Engelen   +4 more
doaj   +1 more source

LINE FORMATION IN SPECTRA OF X-RAY NOVAE

Odessa Astronomical Publications, 2017
Results of X-ray Novae (XN) optical spectra computation are presented. The continuum and Balmer line are calculated. The model of XN as a self-irradiated accretion disk is used.
V. F. Suleimanov, V. V. Shimansky
doaj   +1 more source

Tie-Line Analysis Reveals Interactions Driving Heteromolecular Condensate Formation

Physical Review X, 2022
Phase separation of biomolecules gives rise to membraneless organelles that contribute to the spatiotemporal organization of the cell. In most cases, such biomolecular condensates contain multiple components, but the manner in which interactions between ...
Daoyuan Qian, Timothy J. Welsh, Nadia A. Erkamp, Seema Qamar, Jonathon Nixon-Abell, Georg Krainer, Peter St. George-Hyslop, Thomas C. T. Michaels, Tuomas P. J. Knowles   +8 more
doaj   +1 more source

Molecular Emission Line Formation in Prestellar Cores

, 2008
We investigate general aspects of molecular line formation under conditions which are typical of prestellar cores. Focusing on simple linear molecules, we study formation of their rotational lines by radiative transfer simulations.
B. Shustov, D. Semenov, D. Wiebe, Farquhar P. R. A., Hegmann M., Hogerheijde M. R., Leger A., Lucas R., Pavlyuchenkov Ya. N., R. Launhardt, Rawlings J. M. C., Stenholm L. G., Th. Henning, Ya. Pavlyuchenkov   +13 more
core   +1 more source

A Note on the Formation of Stellar Absorption Lines [PDF]

The Astrophysical Journal, 1936
Microphotometer measures of the total absorptions of lines of O II within the wing of Hγ, and of CaH within the wing of HЄ, show departures from the normal absorptions predicted from the multiplet intensities of these lines. The departures increase with the wing absorption, but the effect is more pronounced for O II than for CaH.
Swings, Polydore, Struve, Otto
openaire   +1 more source

The effect of continuum scattering processes on spectral line formation [PDF]

, 1999
The effect of scattering processes in the continuum on the formation of spectral lines in a static atmosphere with an arbitrary distribution of the internal energy sources is investigated using Ambartsumian's principle of invariance.
G Israelian, Haruthyunian, Haruthyunian, Israelian, Nikoghossian, Nikoghossian, Schuster   +6 more
core   +2 more sources