The stellar content of low redshift BL Lac host galaxies from multicolour imaging
Fuente:
Redalyc
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidad Nacional Autónoma de México
2008
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1876490440836907008 |
|---|---|
| author | J. K. Kotilainen |
| author_facet | J. K. Kotilainen |
| contents | The stellar content of low redshift BL Lac host galaxies from multicolour imaging J. K. Kotilainen T. Hyvönen T. Pursimo R. Falomo Física, Astronomía y Matemáticas galaxies: active galaxies: nuclei galaxies: photometry galaxies: interactions BL Lacertae objects: general We present UBV -band imaging of 18 low redshift (z ≤ 0.3) BL Lac objects. These data are used to investigatethe blue-red-near-infrared colours and colour gradients of the host galaxies. The distributions of the integratedblue/near-infrared colour and colour gradient of the BL Lac hosts are much wider than those for inactiveellipticals, and most BL Lac objects have bluer hosts and/or steeper colour gradients than those in inactiveellipticals. The blue colours are likely caused by a young stellar population component, and indicates a link between star formation caused by an interaction/merging event and the onset of the nuclear activity. This result is supported by stellar population modelling, indicating a presence of young/intermediate age populations in the majority of the sample. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103256 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.32 |
| format | Artículo científico |
| id | redalyc_57103256 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | The stellar content of low redshift BL Lac host galaxies from multicolour imaging J. K. Kotilainen Física, Astronomía y Matemáticas galaxies: active galaxies: nuclei galaxies: photometry galaxies: interactions BL Lacertae objects: general The stellar content of low redshift BL Lac host galaxies from multicolour imaging J. K. Kotilainen T. Hyvönen T. Pursimo R. Falomo Física, Astronomía y Matemáticas galaxies: active galaxies: nuclei galaxies: photometry galaxies: interactions BL Lacertae objects: general We present UBV -band imaging of 18 low redshift (z ≤ 0.3) BL Lac objects. These data are used to investigatethe blue-red-near-infrared colours and colour gradients of the host galaxies. The distributions of the integratedblue/near-infrared colour and colour gradient of the BL Lac hosts are much wider than those for inactiveellipticals, and most BL Lac objects have bluer hosts and/or steeper colour gradients than those in inactiveellipticals. The blue colours are likely caused by a young stellar population component, and indicates a link between star formation caused by an interaction/merging event and the onset of the nuclear activity. This result is supported by stellar population modelling, indicating a presence of young/intermediate age populations in the majority of the sample. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57103256 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.32 |
| title | The stellar content of low redshift BL Lac host galaxies from multicolour imaging |
| topic | Física, Astronomía y Matemáticas galaxies: active galaxies: nuclei galaxies: photometry galaxies: interactions BL Lacertae objects: general |
| url | https://www.redalyc.org/articulo.oa?id=57103256 |