GALEX absolute calibration based on white dwarfs J/MNRAS/489/5046 ivo://CDS.VizieR/J/MNRAS/489/5046 doi:10.26093/cds/vizier.74895046 CDS Wall R.E. Kilic M. Bergeron P. Rolland B. Genest-Beaulieu C.,Gianninas A. 2024-08-20T20:13:12Z 2023-02-14T14:27:42Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr white-dwarf-stars ultraviolet-photometry milky-way-galaxy We use 1837 DA white dwarfs with high signal-to-noise ratio spectra and Gaia parallaxes to verify the absolute calibration and extinction coefficients for the Galaxy Evolution Explorer (GALEX). We use white dwarfs within 100pc to verify the linearity correction to the GALEX data. We find that the linearity correction is valid for magnitudes brighter than 15.95 and 16.95 for the far-ultraviolet (FUV) and near-ultraviolet (NUV) bands, respectively. We also use DA white dwarfs beyond 250pc to calculate extinction coefficients in the FUV and NUV bands: R_FUV_=8.01+/-0.07 and R_NUV_=6.72+/-0.04. These are consistent with the predicted extinction coefficients for Milky Way-type dust in the FUV, but smaller than predictions in the NUV. With well understood optical spectra and state-of-the-art model atmosphere analysis, these white dwarfs currently provide the best constraints on the extinction coefficients for the GALEX data. 2019MNRAS.489.5046W https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/489/5046 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/345 : Gaia DR2 (Gaia Collaboration, 2018) II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) J/ApJS/204/5 : SDSS DR7 white dwarf catalog (Kleinman+, 2013) J/MNRAS/446/4078 : New white dwarf stars in SDSS DR10 (Kepler+, 2015) J/MNRAS/455/3413 : New white dwarf and subdwarf stars in SDSS DR12 J/ApJ/743/138 : Spectroscopic survey of bright white dwarfs https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/489/5046 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/489/5046 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/489/5046 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/489/5046 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/489/5046 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/489/5046 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/489/5046/table1 (Properties of stars within 100 pc in our sample) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/489/5046/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/5046/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/5046/table1? GET text/xml+votable 180.0 50000 true 1.0429953 -3.6689478 0.005555555555555556 Cone search capability for table J/MNRAS/489/5046/table4 (Properties of stars beyond 250 pc in our sample) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/489/5046/table4? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/489/5046/table4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/489/5046/table4? GET text/xml+votable 180.0 50000 true 0.7607331 24.0988678 0.005555555555555556 6/65 131 419 696 698 709 2011 2061 2068 2157 2182 2206 2250-2251 2602 2641 2816 4108 4117 4147 4149 4157 4162 4164-4165 4176 4187 4194 4198 4213 4215 4219 4227 4245-4246 4249 4260 4312 4314 4319 4324 4333-4334 4339 4342-4343 4345 4350-4351 4365 4367 4375 4398 4418 4429 4437 4488 4504 4511 4519 4522-4523 4566 4600 4606 4614 4628 4639 4644 4662 4675 4680 4727 4739 4742 4748 4756 4758 4763 4811 4814 4829 4857 4881 4914 4923 4976 5010 5032 5037-5038 5075 5083 5088 5091 5096 5111 5118 5131 5195 5264 5268 5299 5303 5305 5332 5334 5399 5418-5420 5427 5442 5450 5457 5466 5475 5478 5481 5483 5498 5537 5539 5559-5561 5567 5569 5575 5577 5581 5608 5611 5634 5636 5638 5643 5654 5674 5696 5700-5701 5755 5771 5793 5801 5827 5838 5850 5852 5874 5880 5910 5922 5926-5927 5934 5944 5953 5962 5984 5989-5990 5999 6010 6015 6024 6036 6056-6058 6104 6116 6126 6136 6149-6150 6165 6175 6196 6215 6225 6245 6270 6298 6359 6367 6373 6381 6399 6404 6408 6438 6448 6454 6456 6468 6477 6502-6503 6510 6517 6523 6544-6545 6549 6556 6560 6568 6570 6577 6597-6598 6608 6613-6615 6620-6621 6624 6630 6644 6651 6724 6733 6932 7162-7164 7209 7218-7219 7230 7246 7257 7265 7269 7281 7288 7302 7310 7316 7324 7344 7352 7372-7373 7380 7397 7446 7452 7455 7474 7476 7479 7483 7493 7497 7519 7528-7529 7536-7537 7566 7570 7585 7596 7785 8154 8163 8165 8198-8199 8207 8247 8250 8256 8260 8270 8273 8304 8315 8342 8371 8380 8388 8416 8419 8442 8475 8515 8520 8536 8541 8544 8546 8562 8565 8586 8595 8613 8639 8641 8646 8666 8669 8676 8727 8732 8742 8745 8747 8749 8837 8842 8849 8875 8919 8932 8934 8947 8951 8954 8956 8965 8971 8996 9022 9064 9066 9103 9112 9131 9138 9140 9159 9165-9166 9169-9170 9175 9179 9187 9197 9202 9226 9229 9233 9248 9260 9281-9284 9296 9298 9304 9318 9322-9324 9330 9339 9344 9354 9357 9367 9369 9384 9414 9416 9420 9433 9449 9452 9454-9455 9459 9461 9463 9469 9506 9515 9520 9522 9530 9532 9604 9606 9610 9613 9617 9624 9628 9632 9634-9635 9644 9657-9658 9660 9735 9740 9747 9751 9771 9785 9805 9819 9823 9829 9832 9840-9841 9844 9859 9861 9864 9868 9891 9895 9905-9906 9910 9914 9920 9929 9931-9932 9950-9951 9965-9966 9973 9987 9989 9998 10021 10025 10147-10148 10153 10161 10177 10182 10219 10235 10263 10275 10300 10305 10311-10314 10334-10335 10351 10359 10366 10388 10396 10432 10451 10456 10458 10462 10465 10488-10489 10504-10505 10535 10540-10541 10546-10547 10579 10581 10591 10596 10615 10623 10628 10646-10647 10670 10689 10704-10705 10752 10788 10823 10843 10845 10910 10914 10926 10941 10950 10963 10966 10968 11020 11023 11025 11042 11055 11058 11062 11081 11095 11106 11127 11131-11132 11166 11177 11207 11212 11217 11222-11224 11260 11264 11280 11282 11298-11299 11306 11322 11330 11334 11358 11362 11367 11369 11374 11385 11389 11398 11460 11472 11500 11512 11574 11590 11593 11601 11662 11689 11784 11793 11807 11823 11834-11835 11880 11882 11929 11934-11936 11941 11954 12438 12526 12536 12747 12825 13325 13379 13464 13650 13659 13681 15917 15929 16299 17229 17240 17253 17331 17393 17520 17573 17577 17580 17625 17685 17748 17829 17840 17846 17856 17904 17906 17943 17986 18010 18035 18068 18070 18075 18079 18086 18096 18133 18156 18175 18246 18272 18306 18341 18368 18385 18390 18410 18524 18532 18709 18749 18849 18931 19023 19097 19100 19111 19185 19251 19319 19416 19428 19681 19693 19791 19819 19829-19830 19840 19939 19952 19954 19975 19979 19991 19998 20001 20078 20198 20247-20248 20250 20252 20388 20454-20455 21771 21780-21781 21967 21973 22008 22012 22355 22397 22399 22719 22737 23182 23194 23210 23231 23352 23428 23465 24054 24895 25073 25852 25935 25938 25944 25962 25969 26008 26012 26036 26042 26055 26067 26088 26108 26115 26121 26168 26173 26189 26213 26221 26224 26229 26235 26243 26258 26282 26294 26297 26302 26326 26342 26348-26349 26356 26366 26368-26369 26376 26403 26410 26436 26441 26463 26466 26490 26501 26506 26516 26524-26525 26540 26565 26583 26603 26617 26623 26911 26979 27021 27030 27066 27074 27078 27103 27209 27216 27223 27242 27247 27260 27285 27341 27347 27352 27381 27393 27395 27426-27429 27432 27437 27491-27492 27509 27524 27529 27538 27561 27595 27600 27631-27632 27642 27645 27691 27736 27747 27753 27758 27770 27784 27806 27814 27849 27854 27935 27949 27954 27963 27982 28001-28002 28006 28028 28039 28044 28059 28079 28129 28174 28183 28190 28218 28224 28226 28234 28243-28244 28260 28272 28283 28285 28295 28304-28305 28332 28371 28460 28472 28478 28482 28522 28532 28536 28559 28574 28594 28601 28604 28636 28645 28647 28664 30043 30045 31150 31290 31311 31313 31318 31358 31376 31379 31381 31388 31412 31430 31432 31434 31451 31474 31478 31488 31522 31606-31607 31616-31618 31621 31630 31635 31640 31643 31648 31684 31690 31692 31706 31710 31726 32390 32397 32410 32423-32424 32428 32433 32441 32447 32459 32479 32494 32500 32505-32507 32530-32531 32685 32699 35839 36469 36725-36727 36730 36735 36783 36798 36807-36808 44516 44898 44905 45039 49014 49016 49077 49104 49106 49128 7.447298006782415e-19 1.4134638842407062e-18 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/489/5046?format=ascii UV default J/MNRAS/489/5046/table1 Properties of stars within 100 pc in our sample SimbadName Simbad column added by the CDS meta.id char nullable recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name White dwarf name (1) meta.id;meta.main char FUVs Synthetic FUV magnitude (2) mag phot.mag;meta.modelled float NUVs Synthetic NUV magnitude (2) mag phot.mag;meta.modelled float FUVmag ? GALEX FUV-band magnitude mag phot.mag;em.UV float nullable e_FUVmag ? Error on FUVmag mag stat.error;phot.mag float nullable NUVmag GALEX NUV-band magnitude mag phot.mag;em.UV float e_NUVmag Error on NUVmag mag stat.error;phot.mag float _RA Right Ascension (J2000) from SIMBAD (not part of the original data) deg pos.eq.ra;meta.main _DE Declination (J2000) from SIMBAD (not part of the original data) deg pos.eq.dec;meta.main
J/MNRAS/489/5046/table4 Properties of stars beyond 250 pc in our sample SimbadName Simbad column added by the CDS meta.id char nullable recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name White dwarf name (1) meta.id;meta.main char FUVs Synthetic FUV magnitude (2) mag phot.mag;meta.modelled float NUVs Synthetic NUV magnitude (2) mag phot.mag;meta.modelled float FUVmag ? GALEX FUV-band magnitude mag phot.mag;em.UV float nullable e_FUVmag ? Error on FUVmag mag stat.error;phot.mag float nullable NUVmag GALEX NUV-band magnitude mag phot.mag;em.UV float e_NUVmag Error on NUVmag mag stat.error;phot.mag float _RA Right Ascension (J2000) from SIMBAD (not part of the original data) deg pos.eq.ra;meta.main _DE Declination (J2000) from SIMBAD (not part of the original data) deg pos.eq.dec;meta.main