OPTIČKA DETEKCIJA OSTATAKA SUPERNOVIH I UTICAJ NJIHOVE EMISIJE U LINIJI H(alfa) NA ODREĐIVANJE STOPE FORMIRANJA ZVEZDA

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OPTIČKA DETEKCIJA OSTATAKA SUPERNOVIH I UTICAJ NJIHOVE EMISIJE U LINIJI H(alfa) NA ODREĐIVANJE STOPE FORMIRANJA ZVEZDA

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dc.contributor.advisor Arbutina, Bojan
dc.contributor.author Vučetić, Milica
dc.date.accessioned 2017-10-31T14:08:45Z
dc.date.available 2017-10-31T14:08:45Z
dc.date.issued 2017
dc.identifier.uri http://hdl.handle.net/123456789/4507
dc.description.abstract In this dissertation we discuss in uence of H emission from supernova remnants (SNRs) on H derived star formation rates (SFRs). We present the detection of 16 optical SNR candidates in a part of nearby spiral galaxy IC342, and two more poten- tial SNRs in NGC 185 galaxy. The candidates were detected by applying [S ii]/H ratio criterion on observations made with the 2 m telescope at Rozhen National Astronomical Observatory in Bulgaria. Also, in this dissertation we present the most up-to-date list of nearby galaxies with optically detected SNRs. When deri- ving H star formation rates, assumption is that the radiation is coming from the ionized gas surrounding hot and young stars { Hii regions. In this case, emission from SNRs contaminates H ux used to derive SFR. We found that the contribu- tion of SNRs' ux to the total H ux, for 18 galaxies in our sample of galaxies with optical SNRs, is 5 5%. Due to the observational selection effects, the SNR contamination of SFRs derived herein represents only a lower limit. M83 is the galaxy with the most detected optical SNRs and in this galaxy SNRs account for 9 per cent of the total H emission. We expect that fraction similar to this would be close to the real contribution of SNR emission to the total H emission in spiral galaxies. Using two dwarf galaxies as an example, Holmberg IX and NGC 185, we show that the contamination of H ux by SNRs, or other sources, can be much larger, up to ten times higher than total H ux coming from Hii regions of the observed galaxy. en_US
dc.description.provenance Submitted by Slavisha Milisavljevic (slavisha) on 2017-10-31T14:08:45Z No. of bitstreams: 1 Milica_disertacija_21.03.2017.pdf: 26282508 bytes, checksum: 3df48405a6900b2790eb6f0403b5aa84 (MD5) en
dc.description.provenance Made available in DSpace on 2017-10-31T14:08:45Z (GMT). No. of bitstreams: 1 Milica_disertacija_21.03.2017.pdf: 26282508 bytes, checksum: 3df48405a6900b2790eb6f0403b5aa84 (MD5) Previous issue date: 2017 en
dc.language.iso sr en_US
dc.publisher Beograd en_US
dc.title OPTIČKA DETEKCIJA OSTATAKA SUPERNOVIH I UTICAJ NJIHOVE EMISIJE U LINIJI H(alfa) NA ODREĐIVANJE STOPE FORMIRANJA ZVEZDA en_US
mf.author.birth-date 1985-09-09
mf.author.birth-place Beograd en_US
mf.author.birth-country Srbija en_US
mf.author.residence-state Srbija en_US
mf.author.citizenship Srpsko en_US
mf.author.nationality Srpkinja en_US
mf.subject.area Astronomy en_US
mf.subject.keywords stars: formation { ISM: supernova remnants { galaxies: ISM { galaxies: star formation { galaxies: individual (IC342, NGC 185, Holmberg IX). en_US
mf.subject.subarea Astrophysics en_US
mf.contributor.committee Urošević, Dejan
mf.contributor.committee Ćirković, Milan
mf.university.faculty Mathematical Faculty en_US
mf.document.pages 159 en_US
mf.document.location Beograd en_US
mf.document.genealogy-project No en_US
mf.university Belgrade University en_US

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