Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm.
The diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to unde...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2014
|
| _version_ | 1797089499867512832 |
|---|---|
| author | Kos, J Zwitter, T Wyse, R Bienaymé, O Binney, J Bland-Hawthorn, J Freeman, K Gibson, B Gilmore, G Grebel, E Helmi, A Kordopatis, G Munari, U Navarro, J Parker, Q Reid, W Seabroke, G Sharma, S Siebert, A Siviero, A Steinmetz, M Watson, F Williams, M |
| author_facet | Kos, J Zwitter, T Wyse, R Bienaymé, O Binney, J Bland-Hawthorn, J Freeman, K Gibson, B Gilmore, G Grebel, E Helmi, A Kordopatis, G Munari, U Navarro, J Parker, Q Reid, W Seabroke, G Sharma, S Siebert, A Siviero, A Steinmetz, M Watson, F Williams, M |
| author_sort | Kos, J |
| collection | OXFORD |
| description | The diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to understanding DIBs, we combined information from nearly 500,000 stellar spectra obtained by the massive spectroscopic survey RAVE (Radial Velocity Experiment) to produce the first pseudo-three-dimensional map of the strength of the DIB at 8620 angstroms covering the nearest 3 kiloparsecs from the Sun, and show that it follows our independently constructed spatial distribution of extinction by interstellar dust along the Galactic plane. Despite having a similar distribution in the Galactic plane, the DIB 8620 carrier has a significantly larger vertical scale height than the dust. Even if one DIB may not represent the general DIB population, our observations outline the future direction of DIB research. |
| first_indexed | 2024-03-07T03:04:58Z |
| format | Journal article |
| id | oxford-uuid:b22fe6b9-7377-4e62-ba1f-10d766159cdb |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:04:58Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:b22fe6b9-7377-4e62-ba1f-10d766159cdb2022-03-27T04:10:03ZInterstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b22fe6b9-7377-4e62-ba1f-10d766159cdbEnglishSymplectic Elements at Oxford2014Kos, JZwitter, TWyse, RBienaymé, OBinney, JBland-Hawthorn, JFreeman, KGibson, BGilmore, GGrebel, EHelmi, AKordopatis, GMunari, UNavarro, JParker, QReid, WSeabroke, GSharma, SSiebert, ASiviero, ASteinmetz, MWatson, FWilliams, MThe diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to understanding DIBs, we combined information from nearly 500,000 stellar spectra obtained by the massive spectroscopic survey RAVE (Radial Velocity Experiment) to produce the first pseudo-three-dimensional map of the strength of the DIB at 8620 angstroms covering the nearest 3 kiloparsecs from the Sun, and show that it follows our independently constructed spatial distribution of extinction by interstellar dust along the Galactic plane. Despite having a similar distribution in the Galactic plane, the DIB 8620 carrier has a significantly larger vertical scale height than the dust. Even if one DIB may not represent the general DIB population, our observations outline the future direction of DIB research. |
| spellingShingle | Kos, J Zwitter, T Wyse, R Bienaymé, O Binney, J Bland-Hawthorn, J Freeman, K Gibson, B Gilmore, G Grebel, E Helmi, A Kordopatis, G Munari, U Navarro, J Parker, Q Reid, W Seabroke, G Sharma, S Siebert, A Siviero, A Steinmetz, M Watson, F Williams, M Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title | Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title_full | Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title_fullStr | Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title_full_unstemmed | Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title_short | Interstellar medium. Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm. |
| title_sort | interstellar medium pseudo three dimensional maps of the diffuse interstellar band at 862 nm |
| work_keys_str_mv | AT kosj interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT zwittert interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT wyser interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT bienaymeo interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT binneyj interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT blandhawthornj interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT freemank interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT gibsonb interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT gilmoreg interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT grebele interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT helmia interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT kordopatisg interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT munariu interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT navarroj interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT parkerq interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT reidw interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT seabrokeg interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT sharmas interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT sieberta interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT sivieroa interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT steinmetzm interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT watsonf interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm AT williamsm interstellarmediumpseudothreedimensionalmapsofthediffuseinterstellarbandat862nm |