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Studies of the correlation between different diffuse interstellar bands (DIBs) are important for exploring their origins. However, the Gaia-RVS spectral window between 846 and 870 nm contains few DIBs, the strong DIB at 862 nm being the…

Interstellar diffuse bands are usually extracted from hot star spectra because they are characterized by smooth continua. It introduces a strong limitation on the number of available targets, and reduces potential studies of the IS matter…

天体物理仪器与方法 · 物理学 2015-06-12 Hui-Chen Chen , Rosine Lallement , Carine Babusiaux , Lucky Puspitarini , Piercarlo Bonifacio , Vanessa Hill

ABRIDGED: Diffuse interstellar bands (DIBs) are faint spectral absorption features of unknown origin. Research on DIBs beyond the Local Group (LG) will surely blossom in the era of the ELTs. A possibility that needs to be explored is the…

星系天体物理 · 物理学 2018-07-18 Ana Monreal-Ibero , Peter M. Weilbacher , Martin Wendt

Potential vibrational modes associated with diffuse interstellar bands (DIBs) could be discerned by examining energy differences between correlated DIBs. Consequently, $\approx 10^3$ higher correlated DIB pairs ($r-\sigma_r \ge 0.8$, $\ge…

We report the detection of the Diffuse Interstellar Bands (``$DIBs$'') in the optical spectra of seven far-infrared-selected starburst galaxies. The $\lambda$6283.9 \AA and $\lambda$ 5780.5 \AA features are detected with equivalent widths…

天体物理学 · 物理学 2009-10-31 Timothy M. Heckman , Matthew D. Lehnert

High resolution stellar spectroscopic surveys provide massive amounts of diffuse interstellar bands (DIBs) measurements. Data can be used to study the distribution of the DIB carriers and those environmental conditions that favor their…

星系天体物理 · 物理学 2016-08-17 Meriem Elyajouri , Ana Monreal-Ibero , Quentin Remy , Rosine Lallement

The tendency of some diffuse interstellar band (DIB) carriers to concentrate in the outer, UV-illuminated layers of molecular clouds (MCs)--the ``skin effect''--makes their spatial distribution a powerful probe of their physical nature. We…

星系天体物理 · 物理学 2026-03-09 He Zhao , Lu Li

We map the distribution and properties of the Milky Way's interstellar medium as traced by diffuse interstellar bands (DIBs) detected in near-infrared stellar spectra from the SDSS-III/APOGEE survey. Focusing exclusively on the strongest…

We are using five different surveys to compile the largest sample of diffuse interstellar band (DIB) measurements ever collected. GOSSS is obtaining intermediate-resolution blue-violet spectroscopy of ~2500 OB stars, of which 60% have…

星系天体物理 · 物理学 2015-06-16 J. Maíz Apellániz , A. Sota , R. H. Barbá , N. I. Morrell , A. Pellerin , E. J. Alfaro , S. Simón-Díaz

The ongoing Gaia mission of ESA will provide accurate spatial and kinematical information for a large fraction of stars in the Galaxy. Interstellar extinction and line absorption studies toward a large number of stars at different distances…

星系天体物理 · 物理学 2015-12-22 Tomaž Zwitter , Janez Kos

We use star, galaxy and quasar spectra taken by the Sloan Digital Sky Survey to map out the distribution of diffuse interstellar bands (DIBs) induced by the Milky Way. We show that, after carefully removing the intrinsic spectral energy…

星系天体物理 · 物理学 2015-08-10 Ting-Wen Lan , Brice Ménard , Guangtun Zhu

We divide some of the observed diffuse interstellar bands (DIBs) into families which appear to have spectral structures of single species. Three different methods are applied to separate such families, exploring the best approach for future…

天体物理学 · 物理学 2009-11-10 Bogdan Wszolek , Wlodzimierz Godlowski

Diffuse interstellar bands (DIBs) hold a lot of information about the state and the structure of the ISM. Structure can most directly be observed by extensive spectroscopic surveys, including surveys of stars where DIBs are especially…

星系天体物理 · 物理学 2017-05-10 Janez Kos

We present high-resolution echelle spectroscopic observations of the two near- infrared (NIR) Diffuse Interstellar Bands (DIBs) at 13175 A and 11797.5 A. The DIBs have been observed in a number of diffuse interstellar medium sightlines that…

星系天体物理 · 物理学 2015-06-23 M. G. Rawlings , A. J. Adamson , T. H. Kerr

The diffuse interstellar band (DIB) at 5797.1 \AA\ is simulated based on three premises: (1) The carrier of the DIB is polar as concluded by T. Oka et al. from the anomalous spectrum toward Herschel 36. (2) The sharp central feature…

星系天体物理 · 物理学 2016-03-11 Jane Huang , Takeshi Oka

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…

We report absolutely calibrated measurements of diffuse radio emission between 90 and 190 MHz from the Experiment to Detect the Global EoR Signature (EDGES). EDGES employs a wide beam zenith-pointing dipole antenna centred on a declination…

天体物理仪器与方法 · 物理学 2016-10-25 Thomas. J. Mozdzen , Judd. D. Bowman , Raul. A. Monsalve , Alan. E. E. Rogers

We investigate the diffuse interstellar band (DIB) spectrum in the interstellar medium of M31. The DEIMOS spectrograph of the W. M. Keck observatory was used to make optical spectroscopic observations of two supergiant stars, MAG 63885 and…

天体物理学 · 物理学 2009-11-13 M. A. Cordiner , N. L. J. Cox , C. Trundle , C. J. Evans , I. Hunter , N. Przybilla , F. Bresolin , F. Salama

Using over a million and a half extragalactic spectra we study the properties of the mysterious Diffuse Interstellar Bands (DIBs) in the Milky Way. These data provide us with an unprecedented sampling of the skies at high Galactic-latitude…

星系天体物理 · 物理学 2015-06-22 Dalya Baron , Dovi Poznanski , Darach Watson , Yushu Yao , J. Xavier Prochaska

One way to better apprehend the problem of diffuse interstellar bands (DIBs) is to search for correlations between the bands in a large sample of spectra towards various lines of sight: a strict correlation may imply that a common carrier…

天体物理学 · 物理学 2007-05-23 C. Moutou , J. Krelowski , L. d'Hendecourt , J. Jamroszczak