Results 41 to 50 of about 22,641 (242)

Studies of the Diffuse Interstellar Bands. III. HD 183143 [PDF]

, 2009
Echelle spectra of HD 183143 [B7Iae, E(B-V) = 1.27] were obtained on three nights, at a resolving power R = 38,000 and with a signal-to-noise ratio ~1000 at 6400 A in the final, combined spectrum. A catalog is presented of 414 diffuse interstellar bands (
Bishof, M., Friedman, S. D., Hobbs, L. M., McCall, B. J., Oka, T., Rachford, B., Snow, T. P., Sonnentrucker, P., Thorburn, J. A., Welty, D. E., York, D. G.   +10 more
core   +1 more source

MAPPING THE INTERSTELLAR MEDIUM WITH NEAR-INFRARED DIFFUSE INTERSTELLAR BANDS [PDF]

The Astrophysical Journal, 2014
accepted to ApJ, 16 pages, 12 ...
G. Zasowski, B. Ménard, D. Bizyaev, D. A. García-Hernández, A. E. García Pérez, M. R. Hayden, J. Holtzman, J. A. Johnson, K. Kinemuchi, S. R. Majewski, D. L. Nidever, M. Shetrone, J. C. Wilson   +12 more
openaire   +3 more sources

Dense molecular clouds in the SN2008fp host galaxy [PDF]

, 2014
(abridged) We use observations of interstellar absorption features, such as atomic and molecular lines as well as diffuse interstellar bands (DIBs), towards SN2008fp to study the physical properties of extra-galactic diffuse interstellar clouds in the ...
Cox, N. L. J., Patat, F.
core   +1 more source

Diffuse interstellar bands in RAVE survey spectra [PDF]

Astronomy & Astrophysics, 2008
We have used spectra of hot stars from the RAVE Survey in order to investigate the visibility and properties of five diffuse interstellar bands previously reported in the literature. The RAVE spectroscopic survey for Galactic structure and kinematics records CCD spectra covering the 8400-8800 Ang wavelength region at 7500 resolving power.
Boeche, Corrado, Bland-Hawthorn, Joss Bland, Binney, James J., Bienaymé, Olivier, Fiorucci, Massimo A., Munari, Ulisse, Tomasella, Lina, Zwitter, Tomaž, Wyse, Rosemary F G, Williams, Mary E K, Watson, Fred G., Steinmetz, Matthias, Siviero, Alessandro, Siebert, Arnaud, Seabroke, George M., Parker, Quentin A., Navarro, Julio F., Helmi, Amina, Grebel, Eva K., Gilmore, Gerard F., Gibson, Brad K., Freeman, Kenneth C., Campbell, Randy D.   +22 more
openaire   +7 more sources

Centrosymmetric molecules as possible carriers of diffuse interstellar bands

, 2010
In this paper, we present new data with interstellar C2 (Phillips bands A-X), from observations made with the Ultraviolet-Visual Echelle Spectrograph of the European Southern Observatory.
Bakker, Bakker, Ballik, Ballik, Chauville, Crawford, Douay, Douglas, F. A. Musaev, Frisch, G. A. Galazutdinov, Galazutdinov, Galazutdinov, Gredel, Heger, Herbig, Herbig, Hobbs, J. Krełowski, Kaźmierczak, Kaźmierczak, Langhoff, M. Kaźmierczak, M. R. Schmidt, Maier, Marenin, Morton, Sarre, Sonnentrucker, Thorburn, Van Dishoeck, Van Dishoeck, Westerlund, Y. Betelesky, Ádámkovics   +34 more
core   +1 more source

On the Electronic Spectroscopy of Closed Shell Cations Derived From Resonance Stabilized Radicals: Insights From Theory and Franck-Condon Analysis [PDF]

, 2012
Context. Recent attention has been directed on closed-shell aromatic cations as potential carriers of the diffuse interstellar bands. The spectra of mass-selected, matrix-isolated benzylium, and tropylium cations were recently reported.
Kable, S. H., Reid, Scott, Schmidt, T. W., Troy, T. P.   +3 more
core   +2 more sources

Diffuse Interstellar Bands as Probes of Small-Scale Interstellar Structure [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractWe present observations which probe the small-scale structure of the interstellar medium using diffuse interstellar bands (DIBs). Towards HD 168075/6 in the Eagle Nebula, significant differences in DIB absorption are found between the two lines of sight, which are separated by 0.25 pc, and λ 5797 exhibits a velocity shift.
Smith, Keith T., Cordiner, Martin A., Sarre, Peter J.   +2 more
openaire   +2 more sources

Putting the Diffuse Interstellar Bands on the map - literally!

, 2013
In a quest to further our understanding of the diffuse interstellar medium (ISM) as well as the unidentified carriers of the diffuse interstellar bands (DIBs), we are mapping DIBs across the sky using hundreds of hot stars as background torches ...
van Loon, Jacco Th.
core   +1 more source

On the relationship between Red Rectangle and diffuse interstellar bands [PDF]

, 2009
A careful examination of Red Rectangle bands which have been considered as diffuse interstellar bands (DIBs) in emission shows that a few are likely to be artifacts in the spectrum. Some others result from atmospheric extinction. Consequences for the Red
Zagury, Frederic
core   +1 more source

Open problems and perspectives offered by current and future instruments

EPJ Web of Conferences, 2012
We summarize recent observational and theoretical results and discuss the open challenges for astrochemistry and the promises offered by the current and upcoming instruments. Some of the main challenges are listed below. Characterization of the structure
Gérin M.
doaj   +1 more source