Results 121 to 130 of about 136,681 (287)

A Study of Interstellar Medium in the Line of Sight of Transient Neutron Star Low-Mass X-ray Binary, MXB 1659-298, by Timing and Spectral Analysis

Galaxies
This work is dedicated to the study of interstellar medium (ISM) along the line of sight (LOS) of the transient low-mass X-ray binary, MXB 1659-298, capitalizing the high resolving power of XMM-Newton in the soft energy range.
Rabindra Mahato, Parag Bhattacharya, Monmoyuri Baruah   +2 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

The interstellar oxygen-K absorption edge as observed by XMM-Newton

, 2003
High resolution X-ray spectra of the Reflection Grating Spectrometer (RGS) on board the XMM satellite are used to resolve the oxygen K absorption edge. By combining spectra of low and high extinction sources, the observed absorption edge can be split in ...
A. J. den Boggende, A. P. Rasmussen, Bradshaw, Brandt, C. P. de Vries, Dame, Den Herder, F. B. Paerels, Henke, J. S. Kaastra, J. W. den Herder, Jansen, Kaastra, Kaastra, Lockman, McLaughlin, Morrison, Nicastro, Paerels, Samson, Sevier   +20 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

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

CO Line Emission and Absorption from the HL Tau Disk: Where is all the dust?

, 2005
We present high-resolution infrared spectra of HL Tau, a heavily embedded young star. The spectra exhibit broad emission lines of hot CO gas as well as narrow absorption lines of cold CO gas. The column density for this cooler material (7.5+/-0.2 x 10^18
Carr J. S., Craig Kulesa, Monin J. L., Sean D. Brittain, Terrence W. Rettig, Theodore Simon, Whittet D. C. B., Whittet D. C. B.   +7 more
core   +1 more source

The Kinematics of Multiple-Peaked Lyα Emission in Star-Forming Galaxies at z ~ 2-3 [PDF]

, 2012
We present new results on the Lyα emission-line kinematics of 18 z ~ 2-3 star-forming galaxies with multiple-peaked Lyα profiles. With our large spectroscopic database of UV-selected star-forming galaxies at these redshifts, we have determined that ~30 ...
Hainline, Kevin N., Kollmeier, Juna A., Kulas, Kristin R., Shapley, Alice E., Steidel, Charles C., Zheng, Zheng   +5 more
core  

On the Origin of the Wide HI Absorption Line Toward Sgr A*

, 2004
We have imaged a region of about 5' extent surrounding Sgr A* in the HI 21 cm-line absorption using the Very Large Array. A Gaussian decomposition of the optical depth spectra at positions within about 2' (approx.
A. Pedlar, C. C. Lang, D. A. Roberts, G. C. Bower, H. S. Liszt, H. S. Liszt, J. H. Zhao, K. R. Anantharamaiah, K. S. Dwarakanath, K. Y. Lo, P. A. Shaver, R. D. Ekers, R. Gusten, Rekhesh Mohan, S. R. Kulkarni, U. J. Schwarz, V. Radhakrishnan, V. Radhakrishnan, V. Radhakrishnan, W. M. Goss, Y. Maeda   +20 more
core   +2 more sources

oMEGACat. VII. Tracing Interstellar and Intracluster Medium of ω Centauri Using Sodium Absorptions

The Astrophysical Journal
We investigate the foreground interstellar medium along the line of sight and intracluster medium of ω Centauri ( ω Cen) by measuring the equivalent width of Na I D absorptions from MUSE observations. The large line-of-sight velocity difference between ω
Z. Wang, A. C. Seth, M. Latour, J. Strader, M. Häberle, N. Neumayer, C. Clontz, S. Kamann, M. S. Nitschai, M. Alfaro-Cuello, A. Bellini, A. Feldmeier-Krause, M. Libralato, A. P. Milone, P. J. Smith, S. O. Souza, G. van de Ven   +16 more
doaj   +1 more source

Analysis of ultraviolet spectrophotometric data from Copernicus [PDF]

Ultraviolet spectral data from the OAO 3 satellite are being used to study interstellar absorption lines and stellar and circumstellar lines in hot stars.
Snow, T. P., Jr.
core   +1 more source