Results 31 to 40 of about 181,061 (267)

Impact of Molecular Spectroscopy on Carbon Monoxide Abundances from SCIAMACHY

Remote Sensing, 2020
High-quality observations have indicated the need for improved molecular spectroscopy for accurate atmospheric characterization. Line data provided by the new SEOM-IAS (Scientific Exploitation of Operational Missions—Improved Atmospheric Spectroscopy ...
Philipp Hochstaffl, Franz Schreier
doaj   +1 more source

The NIRSPEC Brown Dwarf Spectroscopic Survey II: High-Resolution J-Band Spectra of M, L and T Dwarfs [PDF]

, 2006
We present a sequence of high resolution (R~20,000 or 15 km/s) infrared spectra of stars and brown dwarfs spanning spectral types M2.5 to T6. Observations of 16 objects were obtained using eight echelle orders to cover part of the J-band from 1.165-1.323
Adam J. Burgasser, Delfosse X., Emily L. Rice, Ian S. McLean, J. Davy Kirkpatrick, Jones H. R. A., Jones H. R. A., L. Prato, Mark R. McGovern, Sungsoo S. Kim   +9 more
core   +2 more sources

Random sampling technique for ultra-fast computations of molecular opacities for exoplanet atmospheres

, 2017
Opacities of molecules in exoplanet atmospheres rely on increasingly detailed line-lists for these molecules. The line lists available today contain for many species up to several billions of lines.
Min, Michiel
core   +1 more source

IRAS 18511+0146: a proto Herbig Ae/Be cluster? [PDF]

, 2007
Context: The evolution of a young protocluster depends on the relative spatial distributions and dynamics of both stars and gas. Aims: We study the distribution and properties of the gas and stars surrounding the luminous (10^4 L_sun) protocluster IRAS ...
A. Noriega-Crespo, Allen, Baraffe, Benjamin, Bianchi, Brand, Cohen, Fazio, Furlan, Habart, Hildebrand, Hunt, Indebetouw, Ishii, Johnston, Keto, Kurtz, L. Testi, Lada, Lada, M. Walmsley, Meyer, Molinari, Molinari, Molinari, Palla, Panagia, Persson, Plambeck, Rieke, Rieke, Robitaille, S. Carey, S. Molinari, S. Vig, Schraml, Testi, Testi, Testi, Wang, Watt, Weidner, Werner, Whittet, Zhang   +44 more
core   +3 more sources

Line Intensities and Molecular Opacities of the FeH $F^4\Delta_i-X^4\Delta_i$ Transition

, 2003
We calculate new line lists and opacities for the $F^4\Delta_i-X^4\Delta_i$ transition of FeH. The 0-0 band of this transition is responsible for the Wing-Ford band seen in M-type stars, sunspots and brown dwarfs.
Adam Burrows, Bauschlicher C. W., Jr., C. M. Sharp, C. W. Bauschlicher, Jr., M. Dulick, McCormack P., Nordh H. L., Peter Bernath, R. S. Ram, Wing R. F.   +9 more
core   +1 more source

A Comparison of Water Vapor Line Parameters for Modeling the Venus Deep Atmosphere

, 2009
The discovery of the near infrared windows into the Venus deep atmosphere has enabled the use of remote sensing techniques to study the composition of the Venus atmosphere below the clouds. In particular, water vapor absorption lines can be observed in a
Allen, Allen, Bailey, Bailey, Bailey, Barber, Belmiloud, Bertaux, Brown, Brown, Carlson, Casanova, Chevillard, Crisp, Crisp, De Bergh, Delaye, Drossart, Fischer, Giver, Gurwell, Hough, Humlicek, Ignatiev, Jacquinet-Husson, Jacquinet-Husson, Jeremy Bailey, Krasnopolsky, Langlois, Mandin, Marcq, Marcq, Meadows, Moroz, Moroz, Partridge, Pollack, Rothman, Rothman, Rothman, Rothman, Rothman, Rothman, Rothman, Rothman, Sandor, Schreier, Schwenke, Seiff, Shirin, Simeckova, Smith, Stamnes, Taylor, Toth, Tsang, Van Vleck, von Zahn, Young, Yung   +59 more
core   +1 more source

Physical Properties of Young Brown Dwarfs and Very Low-Mass Stars Inferred from High-Resolution Model Spectra [PDF]

, 2009
By comparing near-infrared spectra with atmosphere models, we infer the effective temperature, surface gravity, projected rotational velocity, and radial velocity for 21 very-low-mass stars and brown dwarfs. The unique sample consists of two sequences in
Allard, Allers, Allers, Ardila, Asplund, Barman, Baron, Basri, Burgasser, Burgasser, Burgasser, Burrows, Burrows, Béjar, Chabrier, Cushing, Cushing, Cushing, Dahn, Dulick, Emily L. Rice, Gizis, Gizis, Golimowski, Gorlova, Hauschildt, Hauschildt, Hauschildt, Ian S. Mclean, J. Davy Kirkpatrick, Kirkpatrick, Kirkpatrick, Konopacky, Kraus, L. Prato, Lowrance, Lowrance, Luhman, Luhman, Luhman, Markwardt, Martín, McGovern, McGovern, McLean, McLean, Mohanty, Mohanty, Mohanty, Mohanty, Mohanty, Mohanty, Muzerolle, Preibisch, Reid, Reiners, Rousselot, Schmidt, Scholz, Schweitzer, Simon, Slesnick, Slesnick, T. Barman, Torres, Vrba, Wilking, Wilking   +67 more
core   +2 more sources

Molecules in Cool Stars: The A2Π − X2Σ+ and the B2Σ+ − X2Σ+ Band Systems of CaCl

The Astrophysical Journal
Cool red giant stars exhibit absorption bands of calcium monochloride (CaCl) in the optical region. In this work, the bands of CaCl corresponding to the A ^2 Π − X ^2 Σ ^+ transition with ${v}^{{\prime} }\leqslant $ 4 and v ″ ≤ 4, and B ^2 Σ ^+ − X ^2 Σ ^
Léo Lavy, Peter F. Bernath
doaj   +1 more source

Strategy for high-accuracy-and-precision retrieval of atmospheric methane from the mid-infrared FTIR network [PDF]

Atmospheric Measurement Techniques, 2011
We present a strategy (MIR-GBM v1.0) for the retrieval of column-averaged dry-air mole fractions of methane (XCH₄) with a precision <0.3% (1-σ diurnal variation, 7-min integration) and a seasonal bias <0.14% from mid-infrared
R. Sussmann, F. Forster, M. Rettinger, N. Jones   +3 more
doaj   +1 more source

An X-ray view of WLRGs/LINERs [PDF]

, 2004
We present X-ray observations of nine Weak-Line Radio Galaxies (WLRGs), optically classified as confirmed or possible Low Ionization Nuclear Emission-line Regions (LINERs). The data were taken from the Chandra, XMM, and BeppoSax archives.
Gliozzi, Mario, Rinn, Alexander S., Sambruna, Rita M.   +2 more
core   +2 more sources