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Related papers: On correlations between diffuse interstellar bands

200 papers

The Solar System is located within a low-density cavity, known as the Local Bubble, which appears to be filled with an X-ray emitting gas at a temperature of 10$^6$ K. Such conditions are too harsh for typical interstellar atoms and…

Astrophysics of Galaxies · Physics 2019-07-18 Amin Farhang , Jacco Th. van Loon , Habib G. Khosroshahi , Atefeh Javadi , Mandy Bailey

The Sun lies in the middle of an enormous cavity of a million degree gas, known as the Local Bubble. The Local Bubble is surrounded by a wall of denser neutral and ionized gas. The Local Bubble extends around 100 pc in the plane of Galaxy…

Astrophysics of Galaxies · Physics 2015-11-24 Jacco Th. van Loon , Amin Farhang , Atefeh Javadi , Mandy Bailey , Habib Khosroshahi

This paper tries to establish whether there are variations of the central wavelengths or the profile shapes of diffuse interstellar bands (DIBs) and whether these variations are caused by different physical parameters of translucent clouds.…

Astrophysics of Galaxies · Physics 2020-02-26 J. Krełowski , T. Marić , A. Karipis , A. Strobel , G. A. Galazutdinov

We developed a set of procedures to automatically detect and measure the DIB around 8620 {\AA} (the Gaia DIB) for a wide range of temperatures. The DIB profile is fit with a Gaussian function. Specifically, the DIB feature is extracted from…

Astrophysics of Galaxies · Physics 2021-01-04 H. Zhao , M. Schultheis , A. Recio-Blanco , G. Kordopatis , P. de Laverny , A. Rojas-Arriagada , M. Zoccali , F. Surot , E. Valenti

This molecular orbital analysis predicts that pure carbon graphene molecules would play an important role on astronomically observed Diffuse Interstellar Bands (DIB), rather than fullerene. Laboratory experiments precisely coincided with…

Astrophysics of Galaxies · Physics 2023-12-22 Norio Ota

We present a new database of 5780.5 and 6283.8 {\AA} DIB measurements and also study their correlation with the reddening. The database is based on high-resolution, high-quality spectra of early-type nearby stars located in the southern…

Astrophysics of Galaxies · Physics 2015-06-05 Séverine Raimond , Rosine Lallement , Jean-Luc Vergely , Carine Babusiaux , Laurent Eyer

A high spectral resolution investigation of diffuse interstellar bands (DIBs) in the near-infrared ($YJ$ band) is conducted to test new methods, to confirm and improve existing parameters, and to search for new DIBs. Methods: The CRyogenic…

Astrophysics of Galaxies · Physics 2024-09-02 A. Ebenbichler , A. Postel , N. Przybilla , A. Seifahrt , D. Weßmayer , W. Kausch , M. Firnstein , K. Butler , A. Kaufer , H. Linnartz

The diffuse light within galaxy groups and clusters provides valuable insight into the growth of massive cosmic structures. Groups are particularly interesting in this context, because they represent the link between galactic haloes and…

Astrophysics of Galaxies · Physics 2022-11-22 Syeda Lammim Ahad , Yannick M. Bahé , Henk Hoekstra

This paper is devoted to studying the CIB through its correlation properties. We studied the limits on CIB anisotropy in the near IR (1.25, 2.2, and 3.5 \um, or $J,\;K,\;L$) bands at a scale of 0.7\deg\ using the COBE\footnote{ The National…

Astrophysics · Physics 2009-10-28 A. Kashlinsky , J. C. Mather , S. Odenwald , M. Hauser

Gas phase spectroscopic laboratory experiments for the buckminsterfullerene cation C60+ resulted in accurate rest wavelengths for five C60+ transitions that have been compared with diffuse interstellar bands (DIBs) in the near infra-red.…

Line-of-sight extinction estimates to well-studied young T Tauri and Herbig Ae/Be stars are based on many different measurements and analysis methods. This has resulted in wide scatter among the published $A_V$ values for the same star. In…

Solar and Stellar Astrophysics · Physics 2022-12-07 Adolfo S. Carvalho , Lynne A. Hillenbrand

We present strong evidence that the broad, diffuse interstellar bands (DIBs) at 4881 and 5450\,\AA are caused by the $B\,^1$B$_1$\,$\leftarrow$\,$X\,^1$A$_1$ transition of H$_2$CCC (l-C$_3$H$_2$). The large widths of the bands are due to…

Astrophysics of Galaxies · Physics 2015-05-20 J. P. Maier , G. A. H. Walker , D. A. Bohlender , F. J. Mazzotti , R. Raghunandan , J. Fulara , I. Garkusha , A. Nagy

Data-driven models of stellar spectra are useful tools to study non-stellar information, such as the Diffuse Interstellar Bands (DIBs) caused by intervening interstellar material. Using $\sim 55000$ spectra of $\sim 17000$ red clump stars…

Astrophysics of Galaxies · Physics 2024-02-08 Kevin A. McKinnon , Melissa K. Ness , Constance M. Rockosi , Puragra Guhathakurta

This paper presents a finding of the correlation between the width of a strong diffuse interstellar band at 6196A and the excitation temperature of C2 based on high resolution and high signal-to-noise ratio spectra. The excitation…

Astrophysics of Galaxies · Physics 2010-09-28 M. Kazmierczak , P. Gnacinski , M. R. Schmidt , G. Galazutdinov , A. Bondar , J. Krelowski

We compile a sample of 341 binary and multiple star systems with the aim of searching for and characterising Kuiper belt-like debris discs. The sample is assembled by combining several smaller samples studied in previously published work…

Earth and Planetary Astrophysics · Physics 2019-07-17 Ben Yelverton , Grant M. Kennedy , Kate Y. L. Su , Mark C. Wyatt

Large organic molecules and carbon clusters are basic building blocks of life, but their existence in the universe has not been confirmed beyond doubt. A number of unidentified absorption features (arising in the diffuse inter-stellar…

Astrophysics of Galaxies · Physics 2009-08-03 Toru Misawa , Poshak Gandhi , Akira Hida , Toru Tamagawa , Tomohiro Yamaguchi

Context: Nearly one century after their discovery, the carrier(s) of Diffuse Interstellar Bands is/are still unknown and there are few sightlines studied in detail for a large number of DIBs. Aims: We want to study the ISM sightlines…

Astrophysics of Galaxies · Physics 2015-11-11 J. Maíz Apellániz , R. H. Barbá , A. Sota , S. Simón-Díaz

Analyses of B and R band observations of four compact groups reveal the presence of a considerable amount of diffuse, intergalactic light in two of them (HCG 79 and HCG 95). The diffuse component is presumably due to stellar material that…

Astrophysics · Physics 2009-11-07 C. Mendes de Oliveira , C. Da Rocha , C. R. Rabaça , D. N. E. Pereira , M. Bolte

We study the relations existing between fluxes emitted at CO(1-0) line, 60 and 100 micron wavelengths, B and soft X-ray wavebands for galaxies of all morphological types. The large set of data that we created allows to revisit some of known…

Astrophysics · Physics 2009-11-11 G. Galletta , V. Casasola , L. Piovan , E. Merlin , D. Bettoni

Intensity mapping has attracted significant interest as an approach to measure the properties of the interstellar medium in typical galaxies at high redshift. Intensity mapping measures the statistics of surface brightness as a function of…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-20 E. R. Switzer , C. J. Anderson , A. R. Pullen , S. Yang