J/MNRAS/431/2034ivo://CDS.VizieR/J/MNRAS/431/2034doi:10.26093/cds/vizier.74312034CDSMelnick J.De Propris R.2024-07-21T20:14:39Z2014-07-10T13:50:42ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesphotometryspectral-energy-distributionWe present spectrum synthesis fits to 808 K+A galaxies selected from the Sloan Digital Sky Survey (SDSS) and population synthesis of their spectral energy distributions, extending from the far-UV (0.15{mu}m) to the mid-IR (22{mu}m), based on the results of STARLIGHT code fitting to the SDSS spectra. Our modelling shows that K+A galaxies have undergone a large starburst, involving a median 50% of their present stellar masses, superposed over an older stellar population. The metal abundance of the intermediate-age stars shows that star formation did not take place in pristine gas, but was part of a dramatic increase in the star formation rates for originally gas-rich objects. We find no evidence for ongoing QSO activity in the UV, which is well modelled by the emission of intermediate-age stars. We use K+A galaxies as local counterparts of high-redshift objects to test for the presence of thermally pulsing asymptotic giant branch (TP-AGB) stars in similarly aged populations and find no excess in the infrared due to emission from such stars, arguing that more distant galaxies are indeed old and massive at their redshift. All of our galaxies show significant excesses in the mid-IR compared to the light from their stars. We fit this ad hoc with a 300K blackbody. Possible sources include TP-AGB stars, obscured young star clusters and hidden AGNs, heating a significant dust component.2013MNRAS.431.2034Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/431/2034CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/431/2034https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/431/2034http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/431/2034https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/431/2034https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/431/2034http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/431/2034GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/431/2034/galaxies (The sample of K+A galaxies: spectral energy distributions (table1) and STARLIGHT populations for K+A galaxies (table3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/431/2034/galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/431/2034/galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/431/2034/galaxies?GETtext/xml+votable180.050000true2.61413333-10.728252780.0055555555555555566/0 4151 4161 4164 4188 4198 4221 4231 4234 4243 4261 4278 4298 4303 4316 4344 4353 4355 4364 4366 4385 4391 4404 4415 4429 4435 4439 4453-4454 4483 4490 4498 4545 4552 4557 4580 4585 4608 4627 4650 4677 4681 4684-4685 4698 4713 4724 4750 4790 4794-4795 4806 4821 4829 4842 4846 4861 4863 4867 4894 4897 4919 4922 4932 4960 4969 4977 4984 4996 5002 5017 5023 5046 5062 5073 5094 5123 5130 5146 5204 5206 5219 5239 5241 5247 5263 5266 5269 5276 5282 5289 5341 5343 5362 5376 5384-5385 5395 5397 5400 5415 5420 5425 5429 5452 5463 5482 5500 5522 5524 5537 5542 5555-5557 5562 5572 5575 5590 5605 5612 5625 5642-5643 5653 5682 5693-5694 5699 5704 5708 5773-5774 5787 5806 5812 5815 5829 5865 5879 5898 5911 5958-5959 5987 5990 6002 6007-6008 6010 6033 6045 6047 6068-6069 6072 6080 6094 6096 6106 6130 6227 6231 6234 6236 6239 6261 6267 6340 6389-6391 6420 6434 6437 6439 6443 6445 6451 6458-6459 6466 6472 6477 6499-6501 6504 6510 6512 6531 6534 6582 6633 7196 7201 7205 7223 7247 7253-7254 7256 7267 7274 7296 7298 7309 7321-7322 7375 7380-7381 7406 7424-7425 7431 7465 7474 7483 7557 7559 8195 8202-8203 8220-8221 8236 8247 8257 8260 8269 8271 8291 8300 8319 8322 8334 8337 8372 8374 8377 8381 8398 8413-8414 8429 8431 8442 8449 8471-8474 8480 8486 8507 8510 8514-8515 8520-8522 8527 8534 8541 8545 8554-8555 8559-8560 8562 8568 8584 8592 8605 8610 8627 8630 8633 8638 8642 8654 8679 8683 8737 8739-8740 8752 8762 8768 8774 8781 8783-8785 8788 8791 8820 8823 8830 8843 8846 8848 8864 8873 8883 8898 8908 8914 8927 8933 8941 8944 8946 8950 8952 8974 8976 8987 9002 9025 9029 9032 9038 9054 9065 9069 9082 9088-9089 9092 9098 9119 9141 9148 9156 9203 9226 9241-9242 9252 9266 9269 9306 9313-9314 9317 9332 9338 9379 9387 9399 9403 9408 9431 9475 9505 9518 9638 9737 9743 9754 9774 9792 9804 9813 9824 9835 9858 9881 9893 9897 9922-9924 9935 9944 9984 9986 9988 9992 10025 10073 10096 10122 10188 10217 10234 10252 10283 10290 10299 10309 10318 10320 10322 10329 10361 10378-10379 10383 10393 10400 10403 10408 10413 10434 10436 10441-10442 10457 10475 10484 10497-10498 10509 10516 10541 10549 10557-10558 10568 10577 10604-10605 10611 10675 10700 10742 10744 10751 10755-10756 10767 10778 10791 10806 10814-10815 10823-10824 10848 10876 10889 10891 10905 10912 10914 10932 10951 10963 10968 10972 11003 11022-11024 11063 11087 11097 11129 11172 11211 11214 11223 11226 11230 11242 11249 11275 11287 11310 11371-11372 11376 11397 11404 11420 11426 11430 11440 11446 11506 11514 11530 11588 11590 11593 11797-11798 11805 11823 11828 11904 11912 17250 17252 17292 17299-17300 17308 17492 17509 17555 17562 17761 17765-17766 17806 17811 17825 18013 18526 18544 18597 18625 18795 18865 18946 18956 19043 19047 19094 19107 19120 19122 21877 21976 22004 22014 22355 22365 22396 23205 25592-25593 25907 25931 25946 25958 25976 25979 25981 25990 25993 26005 26009-26010 26024 26026 26034 26040 26074 26079 26094 26100 26106 26172 26178 26190 26225 26253 26264 26280 26283 26288 26293 26313-26314 26317 26338 26353 26374 26397 26409 26421 26425 26427 26434 26445 26449 26458 26460-26461 26487 26493 26505 26520 26525 26527 26544 26575 26596 26606-26607 26617 26942 26952 26961 26967 26973 26977 26988 26990 27001 27005 27031 27052 27054 27072 27074 27077 27083 27092 27104-27105 27109 27117-27118 27125 27225-27226 27230 27240 27244 27251 27286 27321 27325 27331 27334 27344 27403-27404 27419 27422 27429 27456 27466 27469 27511 27518 27529 27537 27548 27553 27558 27560 27565 27575 27587 27589 27593 27596 27598 27603 27607 27614 27626 27691 27700-27701 27739 27742 27752 27763 27770 27778 27794 27803 27811 27832 27859 27862 27882 27903 27913 27915 27917 27919 27954-27955 27961 27984 28002 28004 28024 28028 28032 28072 28083 28085 28093 28143 28153 28181 28185 28189 28200 28221 28252 28265 28267 28287 28299 28308 28322-28323 28363 28369 28373-28374 28377 28414 28418 28442-28443 28460 28488 28494 28506 28548 28550 28567 28597 28604 28650 28655-28656 28659 28669 31291 31339 31355 31372 31411 31415 31419 31440 31444 31446 31450 31471 31483 31545 31547 31633 31635-31636 31640 31642 31644 31650 31655 31667 31675 31694 31725 31735 31739 32408-32409 32437 32491 32503 36765 36777 36861-36862 49020 49092 491058.157980699529898e-21 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/431/2034?format=asciiOpticaldefaultJ/MNRAS/431/2034/galaxiesThe sample of K+A galaxies: spectral energy distributions (table1) and STARLIGHT populations for K+A galaxies (table3)F12um? WISE 12um flux (1)aW.m**-2.nm**-1phot.flux.density;em.IR.8-15umfloatnullableSeq[1/808] Sequential numbermeta.recordintprimarySDSSSDSS name (HHMMSS.sss+DDMMSS.ss)meta.id;meta.maincharFUV? GALEX FUV flux (1)aW.m**-2.nm**-1phot.flux;em.UVfloatnullableNUV? GALEX NUV flux (1)aW.m**-2.nm**-1phot.flux;em.UVfloatnullableFu'? SDSS u' flux (1)aW.m**-2.nm**-1phot.mag;em.opt.UfloatnullableFg'? SDSS g' flux (1)aW.m**-2.nm**-1phot.mag;em.opt.BfloatnullableFr'? SDSS r' flux (1)aW.m**-2.nm**-1phot.mag;em.opt.RfloatnullableFi'? SDSS i' flux (1)aW.m**-2.nm**-1phot.mag;em.opt.IfloatnullableFz? SDSS z flux (1)aW.m**-2.nm**-1phot.mag;em.opt.IfloatnullableFJ? 2MASS or UKIDSS J flux (1)aW.m**-2.nm**-1phot.flux.density;em.IR.JfloatnullableFH? 2MASS or UKIDSS H flux (1)aW.m**-2.nm**-1phot.flux.density;em.IR.HfloatnullableFKs? 2MASS or UKIDSS Ks flux (1)aW.m**-2.nm**-1phot.mag;em.IR.KfloatnullableF3.4um? WISE 3.4um flux (1)aW.m**-2.nm**-1phot.mag;em.IR.3-4umfloatnullableF4.6um? WISE 4.6um flux (1)aW.m**-2.nm**-1phot.mag;em.IR.4-8umfloatnullableF22um? WISE 22um flux (1)aW.m**-2.nm**-1phot.flux.density;em.IR.15-30umfloatnullableSEDSED plotmeta.ref.urlcharDR7Display the SDSS-DR7 photometric datameta.ref.urlcharSloanDisplay the SDSS data for this galaxymeta.ref.urlcharzRedshift (from SDSS-DR7)src.redshiftfloatMassMass (in 10^9^M_{sun}_)GsolMassphys.massfloatAVintInternal absorptionmagphys.absorptionfloatAVmwMilky Way absorptionmagphys.absorptionfloat[NII]/HaAbundance ratio [NII](6584{AA})/H{alpha}phys.abund;arith.ratiofloatEWHaH{alpha} Equivalent width of H{alpha}0.1nmspect.line.eqWidth;em.line.HalphafloatEW[OIII]Equivalent width of [OIII](5007{AA})0.1nmspect.line.eqWidth;em.line.OIIIfloatEW[OII]Equivalent width of [OII](3727-29{AA})0.1nmspect.line.eqWidthfloatY[0/100] Fraction of Young population stars (1)%stat.paramfloatI.p[0/100] Fraction of Intermediate Age population, metal poor stars (1)%stat.paramfloatI.0[0/100] Fraction of Intermediate Age population, solar metallicity stars (1)%stat.paramfloatI.r[0/100] Fraction of Intermediate Age population, metal rich stars (1)%stat.paramfloatO.p[0/100] Fraction of Old population, metal poor stars (1)%stat.paramfloatO.0[0/100] Fraction of Old population, solar metallicity stars (1)%stat.paramfloatO.r[0/100] Fraction of Old population, metal rich stars (1)%stat.paramfloatSimbadNameSimbad column added by the CDSmeta.idchar_RAPosition from SDSS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from SDSS name (declination part)degpos.eq.dec;meta.main