Cairós, Luz Marina

[["dc.bibliographiccitation.firstpage","164"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The Astrophysical Journal"],["dc.bibliographiccitation.lastpage","182"],["dc.bibliographiccitation.volume","577"],["dc.contributor.author","Cairos, L. M."],["dc.contributor.author","Caon, N."],["dc.contributor.author","Garcia-Lorenzo, B."],["dc.contributor.author","Vilchez, J. M."],["dc.contributor.author","Munoz-Tunon, C."],["dc.date.accessioned","2018-11-07T10:02:48Z"],["dc.date.available","2018-11-07T10:02:48Z"],["dc.date.issued","2002"],["dc.description.abstract","We present results from a detailed spectrophotometric analysis of the blue compact dwarf galaxy (BCD) Mrk 370, based on deep UBVRI broadband and Halpha narrowband observations, and on long-slit and two-dimensional spectroscopy of its brightest knots. The spectroscopic data are used to derive the internal extinction and to compute metallicities, electronic density, and temperature in the knots. By subtracting the contribution of the underlying older stellar population, modeled by an exponential function, removing the contribution from emission lines, and correcting for extinction, we can measure the true colors of the young star-forming knots. We show that the colors obtained this way differ significantly from those derived without the above corrections and lead to different estimates of the ages and star-forming history of the knots. Using predictions of evolutionary synthesis models, we estimate the ages of both the starburst regions and the underlying stellar component. We found that we can reproduce the colors of all the knots with an instantaneous burst of star formation and the Salpeter initial mass function ( IMF) with an upper mass limit of 100 M-circle dot. The resulting ages range between 3 and 6 Myr. The colors of the low surface brightness component are consistent with ages larger than 5 Gyr. The kinematic results suggest ordered motion around the major axis of the galaxy."],["dc.identifier.doi","10.1086/342134"],["dc.identifier.isi","000178033200017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38305"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Univ Chicago Press"],["dc.relation.issn","0004-637X"],["dc.title","Spectrophotometric observations of blue compact dwarf galaxies: Markarian 370"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","611"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Astrophysics and Space Science"],["dc.bibliographiccitation.lastpage","614"],["dc.bibliographiccitation.volume","284"],["dc.contributor.author","Cairos, L. M."],["dc.contributor.author","Garcia-Lorenzo, B."],["dc.contributor.author","Caon, N."],["dc.contributor.author","Vilchez, J. M."],["dc.contributor.author","Papaderos, P."],["dc.contributor.author","Noeske, K."],["dc.date.accessioned","2018-11-07T10:42:02Z"],["dc.date.available","2018-11-07T10:42:02Z"],["dc.date.issued","2003"],["dc.description.abstract","Preliminary results from a detailed spectrophotometric analysis of the blue compact dwarf galaxy (BCD) Mrk 35 are presented. We have performed deep UBVRI broad-band and H-alpha narrow-band optical observations, near-infrared (JHK(s)) imaging and long-slit spectroscopy of the galaxy. Mrk 35 is composed of a very young starburst population distributed in a bar-like structure, placed on top of an underlying, older stellar host galaxy. Using predictions of evolutionary synthesis models, we estimate the ages of both the starburst regions and the underlying stellar component."],["dc.identifier.doi","10.1023/A:1024018308729"],["dc.identifier.isi","000183320500062"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/46687"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Kluwer Academic Publ"],["dc.publisher.place","Dordrecht"],["dc.relation.conference","Conference on the Appropriate Modellings of Galaxy Evolution from their Cosmological Formation to their Presently Observable Structures"],["dc.relation.eventlocation","KIEL, GERMANY"],["dc.relation.issn","0004-640X"],["dc.title","Spectrophotometric investigations of the blue compact dwarf galaxy Mrk 35"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","312"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","The Astrophysical Journal"],["dc.bibliographiccitation.lastpage","332"],["dc.bibliographiccitation.volume","593"],["dc.contributor.author","Cairos, L. M."],["dc.contributor.author","Caon, N."],["dc.contributor.author","Papaderos, P."],["dc.contributor.author","Noeske, K."],["dc.contributor.author","Vilchez, J. M."],["dc.contributor.author","Lorenzo, B. G."],["dc.contributor.author","Munoz-Tunon, C."],["dc.date.accessioned","2018-11-07T10:37:01Z"],["dc.date.available","2018-11-07T10:37:01Z"],["dc.date.issued","2003"],["dc.description.abstract","We analyze J, H, and K-s near-infrared data for nine blue compact dwarf (BCD) galaxies, selected from a larger sample that we have already studied in the optical. We present contour maps, surface brightness and color profiles, and color maps of the sample galaxies. The morphology of the BCDs in the near-infrared (NIR) has been found to be basically the same as in the optical. The inner regions of these systems are dominated by the starburst component. At low surface brightness levels the emission is due to the underlying host galaxy; the latter is characterized by red, radially constant colors and isophotes well fitted by ellipses. We derive accurate optical-NIR host galaxy colors for eight of the sample galaxies; these colors are typical of an evolved stellar population. Interestingly, optical-NIR color maps reveal the presence of a complex, large-scale absorption pattern in three of the sample galaxies. We study the applicability of the Sersic law to describe the surface brightness profiles of the underlying host galaxy and find that, because of the limited surface brightness interval over which the fit can be made, the derived Sersic parameters are very sensitive to the selected radial interval and to errors in the sky subtraction. Fitting an exponential model gives generally more stable results and can provide a useful tool to quantify the structural properties of the host galaxy and compare them with those of other dwarf classes, as well as with those of star-forming dwarfs at higher redshifts."],["dc.identifier.doi","10.1086/376516"],["dc.identifier.isi","000184585600023"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/45462"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Univ Chicago Press"],["dc.relation.issn","0004-637X"],["dc.title","Deep near-infrared mapping of young and old stars in blue compact dwarf galaxies"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","901"],["dc.bibliographiccitation.issue","2-4"],["dc.bibliographiccitation.journal","Astrophysics and Space Science"],["dc.bibliographiccitation.lastpage","908"],["dc.bibliographiccitation.volume","276"],["dc.contributor.author","Noeske, K. G."],["dc.contributor.author","Cairos, L. M."],["dc.contributor.author","Papaderos, P."],["dc.contributor.author","Vilchez, J. M."],["dc.contributor.author","Fricke, K. J."],["dc.date.accessioned","2018-11-07T09:29:49Z"],["dc.date.available","2018-11-07T09:29:49Z"],["dc.date.issued","2001"],["dc.description.abstract","We are currently analysing image data for a large sample of blue compact dwarf galaxies (BCDs), obtained in multiple optical broad- and narrow-band filters. We present preliminary results of a multi-band analysis of two typical BCDs, Mrk 5 and I Zw 123, for which surface-brightness profiles, colour profiles, colour maps and H-alpha equivalent-width maps have been derived. We demonstrate how a combination of these different processing methods allows a separate analysis of the young and old stellar populations with respect to their colours and spatial distributions. By comparing the derived colours with the predictions of evolutionary synthesis models, we estimate ages of the distinct stellar populations. The surface-brightness profiles of Mrk 5 show an exponential decay at large photometric radii, with slopes typically found for BCDs. In the case of the very compact object I Zw 123, the surface-brightness profile of the underlying stellar component can be described either by an exponential or an R-1/4 law. We discuss briefly how noise effects can influence the intrinsic slope of surface brightness profiles at low surface-brightness levels. For compact objects with extended starbursts, the study of the underlying stellar population can thereby be rendered difficult."],["dc.identifier.doi","10.1023/A:1017529324764"],["dc.identifier.isi","000170945400070"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31141"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Kluwer Academic Publ"],["dc.publisher.place","Dordrecht"],["dc.relation.conference","Euroconference on the Evolution of Galaxies on Cosmological Timescales"],["dc.relation.eventlocation","PUERTO CRUZ, SPAIN"],["dc.relation.issn","0004-640X"],["dc.title","Optical multi-band analyses of blue compact dwarf galaxies"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]