Results 91 to 100 of about 2,644 (226)

The Distance to the Magellanic Stream: Constraints from Optical Absorption along Stellar Sight Lines

The Astrophysical Journal
The Magellanic Stream is a large tail of neutral and ionized gas originating from tidal and hydrodynamical interactions between the Magellanic Clouds as they orbit the Milky Way (MW).
Sapna Mishra, Andrew J. Fox, J. V. Smoker, Scott Lucchini, Elena D’Onghia   +4 more
doaj   +1 more source

Physical and Chemical Properties of Galactic Molecular Gas toward QSO J1851+0035

The Astrophysical Journal
Atacama Large Millimeter/submillimeter Array (ALMA) data toward QSO J1851+0035 ( l = 33.°498, b = +0.°194) were used to study absorption lines by Galactic molecular gas.
Kanako Narita, Seiichi Sakamoto, Jin Koda, Yuki Yoshimura, Kotaro Kohno   +4 more
doaj   +1 more source

Interstellar X-ray absorption spectroscopy of oxygen, neon, and iron with the CHANDRA LETGS Spectrum of X0614+091

, 2001
We find resolved interstellar O K, Ne K, and Fe L absorption spectra in the Chandra X-Ray Observatory Low-Energy Transmission Grating Spectrometer (LETGS) spectrum of the low-mass X-ray binary X0614+091.
Kahn, S. M., Brinkman, A.C., Astrophysics, Drake, Jeremy J., Drake, J.J., Savin, D.W., McLaughlin, B.M., Paerels, Frederik B., Mclaughlin, Brendan M., Universiteit Utrecht, Predehl, P., Brinkman, A. C., Paerels, F., van der Meer, R.L.J., Kahn, S.M., Den Boggende, A. J. F., Kaastra, J.S., Dep Natuurkunde, Kaastra, J. S., Kuulkers, E., Savin, Daniel Wolf, Van der Meer, R. L. J, den Boggende, A.J.F.   +22 more
core   +1 more source

Dust Grain Chemistry in the Diffuse Interstellar Medium toward the Black Hole Transient GX 339–4

The Astrophysical Journal
We present results on X-ray absorption and the dust grain chemistry in the diffuse interstellar medium, based on a new Cycle 25 Chandra High Energy Transmission Grating Spectrometer (HETGS) observational campaign targeting the black hole transient GX 339–
I. Psaradaki, L. Corrales, E. Costantini, P. Draghis, J. A. García, E. Gatuzz, P. Kosec, G. Mastroserio, M. Mehdipour, F. Paerels, D. Rogantini, N. Schulz, S. Zeegers   +12 more
doaj   +1 more source

Investigating Silicate, Carbon, and Water in the Diffuse Interstellar Medium: The First Shots from WISCI

The Astrophysical Journal
The dusty interstellar medium (ISM) of the Milky Way is distributed in a complex, cloudy structure. It is fundamental to the radiation balance within the Milky Way, provides a reaction surface to form complex molecules, and is the feedstock for future ...
S. T. Zeegers, Jonathan P. Marshall, Karl D. Gordon, Karl A. Misselt, G. P. P. L. Otten, Jeroen Bouwman, Jean Chiar, Marjorie Decleir, Thavisha Dharmawardena, F. Kemper, Aigen Li, Mayank Narang, Alexey Potapov, Manoj Puravankara, Peter Scicluna, Himanshu Tyagi, Eleonora Zari, ChuanYu Wei, Lex Kaper, Frank Backs, Stefan T. Bromley, Laurie Chu, Elisa Costantini, T. R. Geballe, Joel D. Green, Chamani Gunasekera, Burcu Günay, Thomas Henning, Olivia Jones, Joan Mariñoso Guiu, Melissa McClure, Yvonne J. Pendleton, Julia C. Roman-Duval, Tomer Shenar, Alexander G. G. M. Tielens, L. B. F. M. Waters   +35 more
doaj   +1 more source

Ca II and CH+ interstellar absorption observations in the direction of resolvable binary stars [PDF]

, 1997
We report the initial results of a study to probe the small-scale structure in diffuse interstellar clouds by observing optical absorption lines of CH+ at 4232 °A and Ca II K at 3933 °A towards both components in resolvable binary systems.
Palazzi, E., Attolini, M. R., Crane, P.
core  

Ultraviolet Properties of Multiphase Gas toward the Inner Galaxy

The Astrophysical Journal
We present a systematic study of the multiphase interstellar gas in the inner Galaxy using Hubble Space Telescope/STIS absorption spectroscopy of 16 massive stars located at spectroscopic distances between 1.3 and 10 kpc in the region −30° ≲  l  ≲ +30 ...
Frances H. Cashman, Andrew J. Fox, Debopam Som, Bart P. Wakker, Robert A. Benjamin, Dhanesh Krishnarao, David M. French, Rongmon Bordoloi, Felix J. Lockman   +8 more
doaj   +1 more source

Interstellar Absorption and Dust Scattering [PDF]

The study of the interstellar medium (ISM) in the X-rays has entered a golden age with the advent of the X-ray observatories XMM-Newton and Chandra. High-energy resolution allowed to study dust spectroscopic features with unprecedented detail.
Costantini, E.; id_orcid, Corrales, L.
core   +1 more source

The ESO Diffuse Interstellar Band Large Exploration Survey (EDIBLES) [PDF]

, 2018
The ESO Diffuse Interstellar Band Large Exploration Survey (EDIBLES) is a Large Programme that is collecting high-signal-to-noise (S/N) spectra with UVES of a large sample of O and B-type stars covering a large spectral range.
Cox, N.L.J., Laverick, M., Elyajouri, M., Monreal-Ibero, A., Lallement, R., Khosroshahi, H. G., Cox, N.L., Joblin, C., Roueff, E., Mulas, G., van Loon, J.T., Smoker, J., de Koter, A.., Evans, C., van Loon, J. T. ., Bhatt, N.H., Sarre, P.J., Foing, B. H., Wade, G., Royer, P., Loon, J.T. van, Cami, J., Sarre, P. J., Bhatt, N. H., Salama, F., de Koter, A. ., Spaans, M., Khosroshahi, H.G., Cordiner, M. A., Marshall, C.C.M., Cordiner, M.A., Foing, B.H., Linnartz, H.V.J., Le Petit, F. ., Smith, K. T., Koter, A. de, Bacalla, X., Marshall, C. C., Le Petit, F., MULAS, Giacomo, Farhang, A., Bron, E., Kaper, L., Ehrenfreund, P., Marshall, C.C., Javadi, A., Linnartz, H., Smith, K.T., Cox, N. L.   +48 more
core   +1 more source

Aperture and Resolution Effects on Ultraviolet Star-forming Properties: Insights from Local Galaxies and Implications for High-redshift Observations

The Astrophysical Journal
We present an analysis of the effects of spectral resolution and aperture scale on derived galaxy properties using far-ultraviolet (FUV) spectra of local star-forming galaxies from the International Ultraviolet Explorer ( R ∼ 250, field of view (FOV ...
Ilyse Clark, Danielle A. Berg, Claus Leitherer, Karla Z. Arellano-Córdova, Andreas A. C. Sander   +4 more
doaj   +1 more source