Results 91 to 100 of about 22,641 (242)

Dust evolution, a global view: II. Top-down branching, nano-particle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]

, 2021
A. P. Jones
openalex   +1 more source

Diffuse Interstellar Bands: Families and Correlations [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractThe term “families of diffuse bands” (DIBs) appeared in 1986/87 when my collaborators: Gordon A.H. Walker, Bengt E. Westerlund and I found that the strength ratio of the major DIBs 5780 and 5797 is heavily variable. We proved that at the same E(B-V) the DIB intensities may vary by as much as a factor of three or more.
openaire   +1 more source

Detections of Diffuse Interstellar Bands in the SDSS Low-resolution Spectra

, 2012
Diffuse interstellar bands (DIBs) have been discovered for almost a century, but their nature remains one of the most challenging problems in astronomical spectroscopy.
Abazajian, Aihara, Allende Prieto, Beers, Beers, Beers, Cami, Cordiner, Cordiner, Cordiner, Cox, Cox, Cui, Ehrenfreund, Ellison, Friedman, Fulbright, Galazutdinov, Galazutdinov, H. B. Yuan, Heckman, Heger, Herbig, Herbig, Hobbs, Hobbs, Jenniskens, Jenniskens, Josafatsson, Junkkarinen, Katz, Kohoutek, Krelowski, Lawton, Lee, Lee, Lee, Luo, Maíz Apellániz, McCall, Morton, Moutou, Munari, Penades Ordaz, Perryman, Sarre, Sarre, Schlafly, Schlegel, Schlesinger, Siebert, Smolinski, Sollerman, Steinmetz, Su, Thorburn, Vos, Wang, Welty, Welty, Westerlund, Wszołek, X. W. Liu, Xing, Yanny, York, York, Zhao, Zhao, Zhu, Zwitter   +70 more
core   +1 more source

Using machine learning to classify the diffuse interstellar bands

, 2015
Using over a million and a half extragalactic spectra we study the correlations of the Diffuse Interstellar Bands (DIBs) in the Milky Way. We measure the correlation between DIB strength and dust extinction for 142 DIBs using 24 stacked spectra in the ...
Baron, Dalya, Cox, Nick L. J., Poznanski, Dovi, Prochaska, J. Xavier, Watson, Darach, Yao, Yushu   +5 more
core   +1 more source

Przezroczystość Wszechświata i międzygwiazdowe pasma rozmyte jako wyzwania dla rozwoju wiedzy przyrodniczej

Zagadnienia Filozoficzne w Nauce, 2017
In general introduction few examples of astronomical explanations of well-known and common local physical phenomena are presented. They are meant to show that it is often much easier to explain commonly experienced phenomena by investigating the behavior
Bogdan Wszołek
doaj  

Diffuse Interstellar Bands: Past and Present [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractThe diffuse interstellar bands (DIBs) have come to the fore as an important mystery. This paper presents the history of DIB discovery and research; their importance; a summary of their properties; constraints on proposed identifications; a survey of DIB papers (including graduate student's theses); and a web site that lists DIBs paper from 1922
openaire   +1 more source

Unidentified Infrared Emission Bands in the Diffuse Interstellar Medium

, 2000
Using the Mid-Infrared Spectrometer on board the Infrared Telescope in Space and the low-resolution grating spectrometer (PHT-S) on board the Infrared Space Observatory, we obtained 820 mid-infrared (5 to 12 $\mu$m) spectra of the diffuse interstellar ...
Boulanger F., Cesarsky D., Clegg P. E., Dartois E., Duley W. W., d’Hendecourt L. B., Feinstein A., H. Okuda, H. Shibai, Habing H. J., I. Yamamura, Jourdain de Muizon M., K. Okumura, Kessler M., Kin‐Wing Chan, Leger A., Lemke D., M. Mizutani, Mattila K., Mattila K., Murakami H., Okumura K., Omont A., Onaka T., Papoular R., Puget J. L., Roelfsema P. R., T. L. Roellig, T. Nakagawa, T. Onaka, T. Tanabe, Trams N., Verstraete L.   +32 more
core   +2 more sources

Diffuse interstellar bands in the lab [PDF]

Science, 2015
Astrochemistry The diffuse interstellar bands (DIBs) are a set of hundreds of broad optical/near-infrared absorption features seen throughout the interstellar medium. Despite the first DIBs being discovered as long ago as 1922, none of the bands has ever been convincingly identified with a particular chemical species. Now Campbell et al.
openaire   +1 more source

Can neutral and ionized PAHs be carriers of the UV extinction bump and the diffuse interstellar bands?

, 2011
Up to now, no laboratory-based study has investigated polycyclic aromatic hydrocarbon (PAH) species as potential carriers of both the diffuse interstellar bands (DIBs) and the 2175 A UV bump.
Bouwman, Clayton, Draine, Ehrenfreund, F. Huisken, Frisch, Galazutdinov, J. Bouwman, Jenniskens, Kokkin, Léger, Léger, M. Steglich, Pino, Radzig, Salama, Salama, Sassara, Schnaiter, Schnaiter, Searles, Steglich, Steglich, Th. Henning, Troy   +24 more
core   +1 more source

Interstellar C60+

, 2012
Buckminsterfullerene (C60) was recently detected through its infrared emission bands in the interstellar medium (ISM), including in the proximity of massive stars, where physical conditions could favor the formation of the cationic form, C60+.
Bauschlicher, Bernard-Salas, Berné, Berné, C. Joblin, Cami, Canton, Cecchi-Pestellini, Chase, Fabian, Foing, Fulara, G. Mulas, Galliano, Galué, García-Hernández, Houck, Iglesias-Groth, Joblin, Kroto, Moutou, O. Berné, Pilleri, Rapacioli, Saito, Sellgren, Smith, Werner   +27 more
core   +3 more sources