Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission
We investigated the star formation rates (SFRs) of selected elliptical galaxies using the infrared data from the Wide-field Infrared Survey Explorer (WISE). The elliptical galaxies were selected from the Sloan Digital Sky Survey (SDSS) MPA-JHU catalog and morphology classified by Galaxy Zoo catalo...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2022
|
| Online Access: | http://journalarticle.ukm.my/20657/ http://journalarticle.ukm.my/20657/1/25.pdf |
| _version_ | 1848815160886558720 |
|---|---|
| author | Nur Hidayah Mohd Ali, Zamri Zainal Abidin, Hwang, Chorng-Yuan |
| author_facet | Nur Hidayah Mohd Ali, Zamri Zainal Abidin, Hwang, Chorng-Yuan |
| author_sort | Nur Hidayah Mohd Ali, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | We investigated the star formation rates (SFRs) of selected elliptical galaxies using the infrared data from the Wide-field Infrared Survey Explorer (WISE). The elliptical galaxies were selected from the Sloan Digital Sky Survey (SDSS)
MPA-JHU catalog and morphology classified by Galaxy Zoo catalog. We used the 3.4-µm emission (W1) of WISE to
represent the stellar mass of the galaxies and the 12- and 22-µm emission (W3 and W4) of WISE to represent the star
formation activity of the galaxies. The W3- and W4-based star formation rates are usually overestimated due to
the star emission in low star-forming galaxies. Stellar continuum emission could contribute to MIR fluxes of elliptical
galaxies with an average overestimation of ~ 13.95 and ~ 0.77% from the observed fluxes of WISE W3 and W4-bands,
which determined by using the estimated WISE W3 and W4 flux correction factors. Better SFRs can be obtained by
subtracting the stellar contribution of the sources. Our result highlights the possibility of the existence of unknown
mechanisms triggering the continuous star formation activities in elliptical galaxies. |
| first_indexed | 2025-11-15T00:45:34Z |
| format | Article |
| id | oai:generic.eprints.org:20657 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:45:34Z |
| publishDate | 2022 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:206572022-12-07T00:46:02Z http://journalarticle.ukm.my/20657/ Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission Nur Hidayah Mohd Ali, Zamri Zainal Abidin, Hwang, Chorng-Yuan We investigated the star formation rates (SFRs) of selected elliptical galaxies using the infrared data from the Wide-field Infrared Survey Explorer (WISE). The elliptical galaxies were selected from the Sloan Digital Sky Survey (SDSS) MPA-JHU catalog and morphology classified by Galaxy Zoo catalog. We used the 3.4-µm emission (W1) of WISE to represent the stellar mass of the galaxies and the 12- and 22-µm emission (W3 and W4) of WISE to represent the star formation activity of the galaxies. The W3- and W4-based star formation rates are usually overestimated due to the star emission in low star-forming galaxies. Stellar continuum emission could contribute to MIR fluxes of elliptical galaxies with an average overestimation of ~ 13.95 and ~ 0.77% from the observed fluxes of WISE W3 and W4-bands, which determined by using the estimated WISE W3 and W4 flux correction factors. Better SFRs can be obtained by subtracting the stellar contribution of the sources. Our result highlights the possibility of the existence of unknown mechanisms triggering the continuous star formation activities in elliptical galaxies. Penerbit Universiti Kebangsaan Malaysia 2022-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/20657/1/25.pdf Nur Hidayah Mohd Ali, and Zamri Zainal Abidin, and Hwang, Chorng-Yuan (2022) Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission. Sains Malaysiana, 51 (9). pp. 3059-3068. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid51bil9_2022/KandunganJilid51Bil9_2022.html |
| spellingShingle | Nur Hidayah Mohd Ali, Zamri Zainal Abidin, Hwang, Chorng-Yuan Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title | Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title_full | Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title_fullStr | Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title_full_unstemmed | Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title_short | Star formation rates for elliptical galaxies derived from the WISE 12- and 22- µm emission |
| title_sort | star formation rates for elliptical galaxies derived from the wise 12- and 22- µm emission |
| url | http://journalarticle.ukm.my/20657/ http://journalarticle.ukm.my/20657/ http://journalarticle.ukm.my/20657/1/25.pdf |