The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections
We present the final data release of observations of λ21-cm emission from Galactic neutral hydrogen over the entire sky, merging the Leiden/Dwingeloo Survey (LDS: Hartmann & Burton 1997, Atlas of Galactic Neutral Hydrogen) of the sky north of δ = -30° with the Instituto Argentino de Radioastrono...
Guardado en:
| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2005
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/83445 |
| Aporte de: |
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I19-R120-10915-83445 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Galaxy: structure Radio lines: ISM Surveys |
| spellingShingle |
Ciencias Astronómicas Galaxy: structure Radio lines: ISM Surveys Kalberla, P. M. W. Burton, W. B. Hartmann, Dap Arnal, Edmundo Marcelo Bajaja, Esteban Morras, Ricardo Pöppel, Wolfgang G. L. The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| topic_facet |
Ciencias Astronómicas Galaxy: structure Radio lines: ISM Surveys |
| description |
We present the final data release of observations of λ21-cm emission from Galactic neutral hydrogen over the entire sky, merging the Leiden/Dwingeloo Survey (LDS: Hartmann & Burton 1997, Atlas of Galactic Neutral Hydrogen) of the sky north of δ = -30° with the Instituto Argentino de Radioastronomía Survey (IAR: Arnal et al. 2000, A&AS, 142, 35; and Bajaja et al. 2005, A&A, 440, 767) of the sky south of δ= -25°. The angular resolution of the combined material is HPBW ∼ 0°.6. The LSR velocity coverage spans the interval -450 km s-1 to +400 km s-1, at a resolution of 1.3 km s-1. The data were corrected for stray radiation at the Institute for Radioastronomy of the University of Bonn, refining the original correction applied to the LDS. The rms brightness-temperature noise of the merged database is 0.07-0.09 K. Residual errors in the profile wings due to defects in the correction for stray radiation are for most of the data below a level of 20-40 mK. It would be necessary to construct a telescope with a main beam efficiency of ηMB ≳ 99% to achieve the same accuracy. The merged and refined material entering the LAB Survey of Galactic H I is intended to be a general resource useful to a wide range of studies of the physical and structural characteristices of the Galactic interstellar environment. The LAB Survey is the most sensitive Milky Way H I survey to date, with the most extensive coverage both spatially and kinematically. |
| format |
Articulo Articulo |
| author |
Kalberla, P. M. W. Burton, W. B. Hartmann, Dap Arnal, Edmundo Marcelo Bajaja, Esteban Morras, Ricardo Pöppel, Wolfgang G. L. |
| author_facet |
Kalberla, P. M. W. Burton, W. B. Hartmann, Dap Arnal, Edmundo Marcelo Bajaja, Esteban Morras, Ricardo Pöppel, Wolfgang G. L. |
| author_sort |
Kalberla, P. M. W. |
| title |
The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| title_short |
The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| title_full |
The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| title_fullStr |
The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| title_full_unstemmed |
The Leiden/Argentine/Bonn (LAB) survey of Galactic HI : Final data release of the combined IDS and IAR surveys with improved stray-radiation corrections |
| title_sort |
leiden/argentine/bonn (lab) survey of galactic hi : final data release of the combined ids and iar surveys with improved stray-radiation corrections |
| publishDate |
2005 |
| url |
http://sedici.unlp.edu.ar/handle/10915/83445 |
| work_keys_str_mv |
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Repositorios |
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