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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

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

Diffuse interstellar bands (DIBs) are absorption features seen in optical and infrared spectra of stars that are probably caused by large and complex molecules in the ISM. Here we investigate the Galactic distribution and properties of two…

Diffuse interstellar bands (DIBs) are common interstellar absorption features in spectroscopic observations but their origins remain unclear. DIBs play an important role in the life cycle of the interstellar medium (ISM) and can also be…

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

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

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…

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

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

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…

星系天体物理 · 物理学 2023-12-19 He Zhao , Mathias Schultheis , Caixia Qu , Tomaz 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…

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

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

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

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

DIBs are ubiquitous in stellar spectra. Traditionally, they have been studied through their extraction from hot stars, because of their smooth continuum. In an era where there are several going-on or planned massive Galactic surveys using…

星系天体物理 · 物理学 2017-03-08 A. Monreal-Ibero , R. Lallement

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 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

We attempt to measure the DIBs $\lambda$5780, $\lambda$5797 and $\lambda$6614 in over two million low-resolution spectra of cool stars from LAMOST. Based on the DIB measurements, the correlation between DIBs and extinction, the kinematics…

星系天体物理 · 物理学 2024-11-20 Xiao-Xiao Ma , Jian-Jun Chen , A-Li Luo , He Zhao , Ji-Wei Shi , Jing Chen , Jun-Chao Liang , Shu-Guo Ma , Cai-Xia Qu , Bi-Wei Jiang

We use more than 872,000 mid-to-high resolution (R $\sim$ 20,000) spectra of stars from the GALAH survey to discern the spectra of diffuse interstellar bands (DIBs). We use four windows with the wavelength range from 4718 to 4903, 5649 to…

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