J/AJ/160/52ivo://CDS.VizieR/J/AJ/160/52doi:10.26093/cds/vizier.51600052CDSMcGahee C.Gray R.O.Griffin R.E.M.Birchard M.Day J.2022-03-08T08:43:55Z2020-11-04T10:05:03ZCDS support team

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

cds-question@unistra.frsurveysf-starsvisible-astronomyspectroscopystellar-spectral-typesThe {rho}Puppis stars are mid-F-type stars that show peculiar chemical-abundance patterns similar to those of the Am stars. Typically they exhibit overabundances of iron-peak elements such as Fe and Ni and s- and r-process elements such as Sr and Eu, and underabundances of certain other elements including He, Ca, and Sc. It has been proposed that these stars are evolving Am stars passing through the short-lived phase that occurs between the re-establishment of convection and the consequent erasure of their chemical peculiarities. In this paper we suggest a second hypothesis: these stars may have acquired their peculiar abundance patterns in a fashion similar to the Barium stars, i.e., they may have gained the s-process element enhancements via mass transfer from a once asymptotic giant-branch companion star, now turned white dwarf. This study will detail our efforts to investigate the {rho}Puppis stars with regard to these two hypotheses, with a view to understanding these stars and their significance in terms of stellar evolution. We have performed a spectral classification survey, and a detailed chemical-abundance analysis of selected {rho}Puppis stars. This paper gives an overview of the {rho}Puppis stars and describes the spectral classification survey which has increased the number of {rho}Puppis stars currently known from 6 to 49. A future paper will describe the chemical-abundance analysis which should provide insight into the nature of these stars.2020AJ....160...52Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/52CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/pastel : The PASTEL catalogue (Soubiran+, 2016-)I/211 : Components of Double and Multiple stars (Dommanget+, 1994)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+AS/137/451 : Radial velocities. IX. (Grenier+, 1999)J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000)J/AJ/126/2048 : NStars project: the Northern Sample. I. (Gray+, 2003)J/AJ/132/161 : NStars project: The southern sample. I. (Gray+, 2006)J/AJ/131/3008 : Double star speckle measures (Horch+, 2006)J/A+A/545/A121 : o Puppis spectra (Koubsky+, 2012)J/AJ/149/8 : RV of southern visual multiple stars (Tokovinin+, 2015)J/AJ/149/59 : Abundances of {rho} Pup (Yushchenko+, 2015)J/MNRAS/459/4299 : Barium stars abundances and kinematics (de Castro+, 2016)J/AJ/152/207 : Spectroscopic Indicators in SeisMic Archive (Rainer+, 2016)J/A+A/608/A100 : CMD and mass distribution of Ba stars (Escorza+, 2017)J/MNRAS/466/546 : Parameters for the 172 {lambda} Boo stars (Murphy+, 2017)J/A+A/610/A17 : RV of candidate hybrid variable stars (Lampens+, 2018)J/MNRAS/474/4322 : Orbital parameters of 341 new binaries (Murphy+, 2018)J/A+A/626/A128 : Main-sequence and subgiant Barium stars (Escorza+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/52https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/52http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/52https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/52https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/52http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/52GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/52/puppis (Spectral classifications and notes for {rho}Puppis stars (merge from table 2 and table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/52/puppis?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/52/puppis?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/52/puppis?GETtext/xml+votable180.050000true1.302072836.30367220.0055555555555555566/41 71 126 162 193-194 240 245 355 406 411 648 757 789 836 968 1031 1182 1214 1283 1313 1317 1319 1332 1343 1467 1477 1519 1528 1609 1781 1783 1825 1913 1917 1943 1960 1984-1985 2021 2047 2086 2265 2294 2352 2512 2719 2800 2839 2856 2876 2980 3076 3082 3092 3103 3110 3139 3176 3196 3231-3232 3261 3267 3271 3431 3568 3606 3689 3696 3735 3757 3926 3962 3975 4061 4106 4109 4347 4465 4539 4659 4663 4675 4698 4713 4798 4802 4860 4919 5112 5283 5397 5478 5504 5515 5571-5572 5577 5630 5639 5721 5826 5921 5948 6068 6266 6268 6354 6375 6386 6426 6516 6550 6629 6706 6743 6767 6793 6798 6807 6824 6884 6913 7018 7071 7075 7109 7112 7195 7275 7292 7326 7332 7338 7413 7518 7540 7552 7578 7604 7608 7611 7640 7722 7784 7807 7830 7918 8085 8295 8317 8552 8588 8612 8627 8705 8729 8959 9083 9102 9111 9233 9240 9429 9540 9546 9593 9595 9599 9618 9638 9725 9751 9811 9866 9895 9930 10001 10096 10106 10312 10372 10476 10590 10620 10663 10750 10789 10877 10904 10948 11003 11033 11046 11207 11292 11339 11505 11554 11573 11675 12020 12031 12172 12279 12298-12299 12368 12402 12476 12494 12511 12620 12668 12833 12849 12928 12937 13005 13007 13082 13094 13163 13195 13251 13294 13315 13325 13500 13581 13591 13601 13682 13713 13752 13762 13781 13836 13978 13994 14041 14053 14136 14152 14160 14170 14212 14330 14355 14437 14439-14440 14473 14529 14598-14599 14627 14633-14634 14685 14710 14779 14818 14821 14842 14915 14951 15036 15045 15062 15106 15149 15191 15232 15348 15503 15514 15580 15598 15606 15653 15669 15749 15765 15782 15852 15960 15997 16035 16310 16332 16732 16750 16814 17135 17289 17316 17328 17357 17370 17443 17465 17615 17640 17657-17658 17715 17763 17859 17969 18001 18062 18067 18077 18092 18107 18190 18324 18342 18470 18517-18518 18628 18688 18695 18698 18764 18812 18861 18898 19088 19118 19124 19132 19135 19155 19175 19186 19215 19260 19275 19284 19362 19368 19406 19424 19531 19557 19572 19615 19658 19779 19788 19831 19844 19897 20008-20009 20014 20029 20043 20109 20157 20440 20443 20446 20905 20957 20971 20983 21192 21212 21244 21273 21316 21347 21356 21475 21505 21515 21526 21598 21632 21679 21685 21687 21704 21715 21723 21772 21800 21822 21897 21937 22010 22038 22063 22087 22118 22125 22128 22162 22166 22190 22200 22285 22292 22328 22405 22500 22504 22546 22618 22625 22628 22685 22805 22835 22878 22921 22935 22947 22982 23035 23059 23142 23157 23206 23247 23259 23270 23377 23385 23476 23487 23500 23615 23636 23768 23797 23848 23876-23877 23897 23912 23946 23976 24015 24027 24036 24092 24145 24152 24158 24297 24324 24409 24440 24472 24503 24537 24986 25067 25074 25079 25166 25435 25442 25448 25516 25534 25572 25589 25607 25612 25651 25689 25787 25834 25844 25879 25888 26098 26155 26179 26185 26192 26270 26495 26575-26576 26585 26592 26693 26729 26765 26796 26833 27021 27107 27155 27268 27325 27402 27529 27678 27775 27884 27900 27940 28008 28061 28078 28146 28174 28239 28252 28350 28432 28475 28496 28550 28618 28645 28957 29125 29377 29393 29446 29620 29867 29880 29962 30107 30145 30184 30193 30228 30269 30293-30294 30352 30411 30419 30527 30593 30648 30693 30754 30764 30827 30851 30907 30917 30966 31047 31112-31113 31238 31284 31289 31382 31395 31461 31560 31567 31577 31581 31630 31675 31716 31754 31770 31788 31867 32021 32222 32570 32593 32660 36182 36220 36703 36801 36823 40313 40356 40358 40374 40381 40395 40445 40527 40538 40620 40721 40813 40938 40951 44407 44506 44532 44720 44762 44809 44885 44957 48732 48850 48858 48893 48980 48987 49029 49047 49051 49077https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/52?format=asciiOpticaldefaultJ/AJ/160/52/puppisSpectral classifications and notes for {rho}Puppis stars (merge from table 2 and table 3)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCatReference catalog used; Mermilliod=Mermilliod+, 1997A&AS..124..349M (575 occurrences), MichiganHD=Houk+, 1973IAUS...50...70H (56 occurrences)meta.id;meta.datasetcharHDHD numbermeta.id;meta.maincharBD? BD identifier (BD +DD NNNNN)meta.id.crossdoublenullableVmag? Apparent V band magnitudemagphot.mag;em.opt.VfloatnullableClassClassification familymeta.code.classcharSpTypeSpectral classificationsrc.spTypecharNotesAdditional notesmeta.notechar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.main