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Diffuse interstellar bands (DIBs) still await an explanation. One expects that some progress in this field will be possible when all the known DIBs are divided into families in such a way that only one carrier is responsible for all bands…

天体物理学 · 物理学 2007-05-23 Bogdan Wszolek

Looking for spectroscopic families in the whole set of discovered diffuse interstellar bands (DIBs) is an indirect trial of solving the problem of DIBs' carriers. Basing on optical high resolution spectra, covering the range from 5655 to…

天体物理学 · 物理学 2007-12-11 K. Bryndal , B. Wszolek

Stellar spectroscopic surveys may bring useful statistical information on the links between Diffuse Interstellar Bands (DIBs) and interstellar environment. DIB databases can also be used as a complementary tool for locating interstellar…

星系天体物理 · 物理学 2015-06-15 Lucky Puspitarini , Rosine Lallement , Hui-Chen Chen

More than 500 diffuse interstellar bands (DIBs) have been observed in astronomical spectra, and their signatures and correlations in different environments have been studied over the past decades to reveal clues about the nature of the…

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

Context: There have been many attempts to identify families of diffuse interstellar bands (DIBs) with perfectly correlating band strengths. Although major efforts have been made to classify broadly based DIB families and important insights…

Diffuse interstellar bands (DIBs) have been discovered for almost a century, but their nature remains one of the most challenging problems in astronomical spectroscopy. Most recent work to identify and investigate the properties and…

太阳与恒星天体物理 · 物理学 2015-06-05 Haibo Yuan , Xiaowei Liu

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…

星系天体物理 · 物理学 2015-08-06 Dalya Baron , Dovi Poznanski , Darach Watson , Yushu Yao , Nick L. J. Cox , J. Xavier Prochaska

The discovery of the first diffuse interstellar bands (DIBs) dates back to the pioneering years of stellar spectroscopy. Today, we know about 300 absorption structures of this kind. There exists a great variety of the profiles and…

天体物理学 · 物理学 2007-12-11 B. Wszolek

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

We study how diffuse interstellar bands (DIBs) measured toward distance-distributed target stars can be used to locate dense interstellar (IS) clouds in the Galaxy and probe a line-of-sight (LOS) kinematical structure, a potential useful…

Echelle spectra of the double-lined spectroscopic binary HD 204827 were obtained on five nights, at a resolving power R = 38,000 and with a S/N ratio = 750 near 6000 A in the final, combined spectrum. The stars show E(B-V) = 1.11 and…

We have investigated the behaviour of three strong near-infrared diffuse interstellar bands (DIBs) at {\lambda}13177 {\AA}, {\lambda}14680 {\AA}, and {\lambda}15272 {\AA}, on a larger sample of sightlines and over a wider range of…

星系天体物理 · 物理学 2024-06-28 R. Castellanos , F. Najarro , M. Garcia , L. R. Patrick , T. R. Geballe

Diffuse Interstellar Bands (DIBs) are crucial tracers of the interstellar medium (ISM), yet their carriers remain poorly understood. While large-scale surveys have advanced DIB studies in cool stellar spectra, measurements in hot stellar…

星系天体物理 · 物理学 2025-06-18 Xiao-Xiao Ma , A-Li Luo , Jian-Jun Chen , Jing Chen , Jun-Chao Liang

Diffuse interstellar bands (DIBs) can trace different conditions of the ISM along the sightline toward the observed stars. A small survey was made in optical wavelengths, producing high resolution and high signal to noise spectra. We…

星系天体物理 · 物理学 2015-06-16 J. Kos , T. Zwitter

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

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

Diffuse interstellar bands (DIBs) are weak absorption features of interstellar origin present in the optical and infrared spectra of stars. Their use as a tool to trace the structure of the Galactic ISM is gaining relevance in the recent…

星系天体物理 · 物理学 2015-11-19 A. Monreal-Ibero , R. Lallement , L. Puspitarini , P. Bonifacio , L. Monaco

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 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…

星系天体物理 · 物理学 2017-10-24 Keith T. Smith , Martin A. Cordiner , Peter J. Sarre
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