Results 61 to 70 of about 712,705 (147)

$C^{-}_{7}$ AND THE DIFFUSE INTERSTELLAR BANDS

, 1999
$^{a}$ Supported by the Fannie and John Hertz Foundation $^{b}$ A.E. Douglas, Nature 269, 130, (1977). W.H. Smith, T.P. Snow, and D.G. York, Astrophys. J. 218, 124 (1977) $^{c}$ M. Tulej, D.A. Kirkwood, M. Pachkov, and J.P. Maier, Astrophys. J. 506, L69 (
York, Donald G., McCall, Benjamin J., Oka, T.   +2 more
core   +1 more source

Where Have All the Sulfur Atoms Gone? Polycyclic Aromatic Hydrocarbon as a Possible Sink for the Missing Sulfur in the Interstellar Medium. I. The C–S Band Strengths

The Astrophysical Journal
Despite its biogenic and astrochemical importance, sulfur (S), the 10th most abundant element in the interstellar medium (ISM) with a total abundance of S/H ≈ 2.2 × 10 ^−5 , largely remains undetected in molecular clouds.
X. J. Yang, Lijun Hua, Aigen Li
doaj   +1 more source

VELOCITY STRUCTURE IN THE DIFFUSE INTERSTELLAR BANDS

, 2006
Author Institution: Center for Astrophysics and Space Astronomy, University of Colorado; Department of Astronomy and Astrophysics, The University of Chicago; Departments of Chemistry and Astronomy, University of; Illinois at Urbana-Champaign; Department ...
Drosback, Meredith M., Rachford, B. L., Snow, T. P., York, Donald G., Sonnentrucker, P., McCall, Benjamin J., Hobbs, L. M., Friedman, S. D., Thorburn, J. A., Welty, D. E.   +9 more
core  

Fine structure of profiles of weak diffuse interstellar bands

, 2002
We present a very high resolution ($R=120\,000$–220 000) analysis of profiles of selected diffuse interstellar bands (DIBs): 4964, 4980, 4985, 5850 Å.
F. Musaev, C. Moutou, G. Galazutdinov, W. Stachowska, G. Lo Curto, J. Krełowski   +5 more
core   +1 more source

The Multiwavelength Extinction Law and Its Variation in the Coalsack Molecular Cloud Based on the Gaia, APASS, SMSS, 2MASS, GLIMPSE, and WISE Surveys

The Astrophysical Journal
Accurate interpretation of observations relies on the interstellar dust extinction law, which also serves as a powerful diagnostic for probing dust properties.
Juan Deng, Shu Wang, Biwei Jiang, He Zhao   +3 more
doaj   +1 more source

PHANGS-ML: The Universal Relation between PAH Band and Optical Line Ratios across Nearby Star-forming Galaxies

The Astrophysical Journal
The structure and chemistry of the dusty interstellar medium (ISM) are shaped by complex processes that depend on the local radiation field, gas composition, and dust grain properties. Of particular importance are polycyclic aromatic hydrocarbons (PAHs),
Dalya Baron, Karin M. Sandstrom, Jessica Sutter, Hamid Hassani, Brent Groves, Adam K. Leroy, Eva Schinnerer, Médéric Boquien, Matilde Brazzini, Jérémy Chastenet, Daniel A. Dale, Oleg V. Egorov, Simon C. O. Glover, Ralf S. Klessen, Debosmita Pathak, Erik Rosolowsky, Frank Bigiel, Mélanie Chevance, Kathryn Grasha, Annie Hughes, J. Eduardo Méndez-Delgado, Jérôme Pety, Thomas G. Williams, Stephen Hannon, Sumit K. Sarbadhicary   +24 more
doaj   +1 more source

Large-scale radio bubbles around the black hole transient V4641 Sgr

Astronomy & Astrophysics
Context. Black holes (BHs) in microquasars can launch powerful relativistic jets that have the capacity to travel up to several parsecs from the compact object and interact with the interstellar medium.
Grollimund N., Corbel S., Fender R., Matthews J. H., Heywood I., Cowie F. J., Hughes A. K., Carotenuto F., Motta S. E., Woudt P.   +9 more
doaj   +1 more source

EWOCS-VII: Unveiling the faint diffuse X-ray emission in Westerlund 1

Astronomy & Astrophysics
Context. Westerlund 1 (Wd 1) is the closest supermassive star cluster to the Sun, containing more than 100 000 stars of all spectral types and masses down to brown dwarfs.
Albacete-Colombo J. F., Andersen M., De Becker M., Mackey J., Larkin C. J. K., Guarcello M. G., Anastasopoulou K., Sciortino S., Greco E., Miceli M., Sapienza V., Flaccomio E., Filócomo A., Stevens I. R., Bayo A., Drake J. J., Gennaro M., Gunderson S. J., Fraschetti F.   +18 more
doaj   +1 more source

Polyacenes and diffuse interstellar bands

, 2019
International audienceThe identification of the carriers of the diffuse interstellar bands (DIBs) remains to be established, with the exception of five bands attributed to C + 60 , although it is generally agreed that DIB carriers should be large carbon ...
Tönshoff, C., Omont, A., A. Omont, C. Tönshoff, Bettinger, H., F, H. F. Bettinger   +5 more
core   +1 more source

WISE J005128.08+645651.7: An enigmatic R Coronae Borealis star

Astronomy & Astrophysics
Context. R Coronae Borealis (RCB) stars are hydrogen-deficient and carbon-rich (HdC) supergiants that likely originate from a merger of two white dwarfs.
Budaj J., Bernhard K., Hubeny I.
doaj   +1 more source