Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Olano, Carlos Alberto | - |
| dc.date | 2018-07-30T17:38:09Z | - |
| dc.date | 2018-07-30T17:38:09Z | - |
| dc.date | 2015-03 | - |
| dc.date | 2018-07-30T13:37:14Z | - |
| dc.date.accessioned | 2019-04-29T15:41:53Z | - |
| dc.date.available | 2019-04-29T15:41:53Z | - |
| dc.date.issued | 2015-03 | - |
| dc.identifier | Olano, Carlos Alberto; Capture of field stars by giant interstellar clouds: The formation of moving stellar groups; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 447; 4; 3-2015; 3016-3028 | - |
| dc.identifier | 0035-8711 | - |
| dc.identifier | http://hdl.handle.net/11336/53422 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/299816 | - |
| dc.description | In the solar neighbourhood, there are moving groups of stars with similar ages and others of stars with heterogeneous ages as the field stars. To explain these facts, we have constructed a simple model of three phases. Phase A: a giant interstellar cloud is uniformly accelerated (or decelerated) with respect to the field stars during a relatively short period of time (10 Myr) and the cloud's mass is uniformly increased. As a result, a number of passing field stars is gravitationally captured by the cloud at the end of this phase; phase B: the acceleration (or deceleration) and mass accretion of the cloud cease. The star formation spreads throughout the cloud, giving origin to stellar groups of similar ages; and phase C: the cloud loses all its gaseous component at a constant rate and in parallel is uniformly decelerated (or accelerated) until reaching the initial velocity of phase A (case 1) or the velocity of the gas cloud remains constant (case 2). Both cases give equivalent results. The system equations for the star motions governed by a time-dependent gravitational potential of the giant cloud and referred to a coordinate system comoving with the cloud have been solved analytically. We have assumed a homogeneous spheroidal cloud of fixed semimajor axis a = 300 pc and of an initial density of 7 atoms cm-3, with a density increment of 100 per cent and a cloud's velocity variation of 30 km s-1, from the beginning to the end of phase A. The result is that about 4 per cent of the field stars that are passing within the volume of the cloud at the beginning of phase A are captured. The Sun itself could have been captured by the same cloud that originated the moving groups of the solar neighbourhood. | - |
| dc.description | Fil: Olano, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Wiley Blackwell Publishing, Inc | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1093/mnras/stu2647 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/447/4/3016/1748816 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/22048 | - |
| dc.subject | GALAXY: KINEMATICS AND DYNAMICS | - |
| dc.subject | ISM: CLOUDS | - |
| dc.subject | OPEN CLUSTERS AND ASSOCIATIONS: GENERAL | - |
| dc.subject | SOLAR NEIGHBOURHOOD | - |
| dc.subject | STARS: KINEMATICS AND DYNAMICS | - |
| dc.subject | SUN: GENERAL | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Capture of field stars by giant interstellar clouds: The formation of moving stellar groups | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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