The HI Distribution Observed toward a Halo Region of the Milky Way
We use observations of the neutral atomic hydrogen (HI) 21-cm emission line to study the spatial distribution of the HI gas in a 80° × 90° region of the Galaxy halo. The HI column densities in the range of 3–11 × 10 20 cm − 2 have been estimated for some of the studied regio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Galaxies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4434/5/3/45 |
| _version_ | 1817979714930737152 |
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| author | Ericson López Jairo Armijos Mario Llerena Franklin Aldás |
| author_facet | Ericson López Jairo Armijos Mario Llerena Franklin Aldás |
| author_sort | Ericson López |
| collection | DOAJ |
| description | We use observations of the neutral atomic hydrogen (HI) 21-cm emission line to study the spatial distribution of the HI gas in a 80° × 90° region of the Galaxy halo. The HI column densities in the range of 3–11 × 10 20 cm − 2 have been estimated for some of the studied regions. In our map—obtained with a spectral sensitivity of ∼2 K—we do not detect any HI 21-cm emission line above 2 σ at Galactic latitudes higher than ∼46°. This report summarizes our contribution presented at the conference on the origin and evolution of barionic Galaxy halos. |
| first_indexed | 2024-04-13T22:46:04Z |
| format | Article |
| id | doaj.art-f0e94022087143d38852f3ef0ed86820 |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-04-13T22:46:04Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-f0e94022087143d38852f3ef0ed868202022-12-22T02:26:24ZengMDPI AGGalaxies2075-44342017-08-01534510.3390/galaxies5030045galaxies5030045The HI Distribution Observed toward a Halo Region of the Milky WayEricson López0Jairo Armijos1Mario Llerena2Franklin Aldás3Observatorio Astronómico de Quito, Escuela Politécnica Nacional, Av. Gran Colombia S/N, Quito 170403, EcuadorObservatorio Astronómico de Quito, Escuela Politécnica Nacional, Av. Gran Colombia S/N, Quito 170403, EcuadorObservatorio Astronómico de Quito, Escuela Politécnica Nacional, Av. Gran Colombia S/N, Quito 170403, EcuadorObservatorio Astronómico de Quito, Escuela Politécnica Nacional, Av. Gran Colombia S/N, Quito 170403, EcuadorWe use observations of the neutral atomic hydrogen (HI) 21-cm emission line to study the spatial distribution of the HI gas in a 80° × 90° region of the Galaxy halo. The HI column densities in the range of 3–11 × 10 20 cm − 2 have been estimated for some of the studied regions. In our map—obtained with a spectral sensitivity of ∼2 K—we do not detect any HI 21-cm emission line above 2 σ at Galactic latitudes higher than ∼46°. This report summarizes our contribution presented at the conference on the origin and evolution of barionic Galaxy halos.https://www.mdpi.com/2075-4434/5/3/4521-cm emission lineGalaxy halointerstellar medium |
| spellingShingle | Ericson López Jairo Armijos Mario Llerena Franklin Aldás The HI Distribution Observed toward a Halo Region of the Milky Way Galaxies 21-cm emission line Galaxy halo interstellar medium |
| title | The HI Distribution Observed toward a Halo Region of the Milky Way |
| title_full | The HI Distribution Observed toward a Halo Region of the Milky Way |
| title_fullStr | The HI Distribution Observed toward a Halo Region of the Milky Way |
| title_full_unstemmed | The HI Distribution Observed toward a Halo Region of the Milky Way |
| title_short | The HI Distribution Observed toward a Halo Region of the Milky Way |
| title_sort | hi distribution observed toward a halo region of the milky way |
| topic | 21-cm emission line Galaxy halo interstellar medium |
| url | https://www.mdpi.com/2075-4434/5/3/45 |
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