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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…

Instrumentation and Methods for Astrophysics · Physics 2015-06-12 Hui-Chen Chen , Rosine Lallement , Carine Babusiaux , Lucky Puspitarini , Piercarlo Bonifacio , Vanessa Hill

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…

Diffuse interstellar bands are usually observed in spectra of hot stars, where interstellar lines are rarely blended with stellar ones. The need for hot stars is a strong limitation in the number of sightlines we can observe and the…

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…

Solar and Stellar Astrophysics · Physics 2015-06-05 Haibo Yuan , Xiaowei Liu

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…

Astrophysics of Galaxies · Physics 2015-06-15 Lucky Puspitarini , Rosine Lallement , Hui-Chen Chen

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…

Astrophysics of Galaxies · Physics 2016-08-17 Meriem Elyajouri , Ana Monreal-Ibero , Quentin Remy , Rosine Lallement

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…

Astrophysics of Galaxies · Physics 2025-06-18 Xiao-Xiao Ma , A-Li Luo , Jian-Jun Chen , Jing Chen , Jun-Chao Liang

The diffuse interstellar bands (DIBs) are absorption lines observed in visual and near infrared spectra of stars. Understanding their origin in the interstellar medium (ISM) is one of the oldest problems in astronomical spectroscopy, as…

Diffuse interstellar bands (DIBs) are broad absorption features associated with interstellar dust and can serve as chemical and kinematic tracers. Conventional measurements of DIBs in stellar spectra are complicated by residuals between…

Astrophysics of Galaxies · Physics 2023-09-01 Andrew K. Saydjari , Ana Sofía M. Uzsoy , Catherine Zucker , J. E. G. Peek , Douglas P. Finkbeiner

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…

Astrophysics of Galaxies · Physics 2015-06-22 Dalya Baron , Dovi Poznanski , Darach Watson , Yushu Yao , J. Xavier Prochaska

The Diffuse Interstellar Bands (DIBs) are absorption features seen in the spectra of astronomical objects, that arise in the interstellar medium. Today more than 500 DIBs have been observed mostly in the optical and near-infrared…

Astrophysics of Galaxies · Physics 2021-12-11 Leander Schlarmann , Bernard Foing , Jan Cami , Haoyu Fan

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…

Astrophysics of Galaxies · Physics 2015-11-19 A. Monreal-Ibero , R. Lallement , L. Puspitarini , P. Bonifacio , L. Monaco

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…

Astrophysics · Physics 2007-05-23 Bogdan Wszolek

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…

Astrophysics of Galaxies · Physics 2024-06-28 R. Castellanos , F. Najarro , M. Garcia , L. R. Patrick , T. R. Geballe

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…

Astrophysics of Galaxies · Physics 2018-07-18 Ana Monreal-Ibero , Peter M. Weilbacher , Martin Wendt

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…

Astrophysics of Galaxies · Physics 2015-08-10 Ting-Wen Lan , Brice Ménard , Guangtun Zhu

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…

Astrophysics of Galaxies · Physics 2015-06-16 J. Kos , T. Zwitter

Diffuse Interstellar Bands (DIBs) are non-stellar weak absorption features of unknown origin found in the spectra of stars viewed through one or several clouds of Interstellar Medium (ISM). Research of DIBs outside the Milky Way is…

Our ability to extract information from the spectra of stars depends on reliable models of stellar atmospheres and appropriate techniques for spectral synthesis. Various model codes and strategies for the analysis of stellar spectra are…

Diffuse interstellar bands (DIBs) are weak and broad interstellar absorption features in astronomical spectra originating from unknown molecules. To measure DIBs in spectra of late-type stars more accurately and more efficiently, we…

Astrophysics of Galaxies · Physics 2023-12-19 He Zhao , Mathias Schultheis , Caixia Qu , Tomaz Zwitter
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