Hypervelocity stars. II. J/ApJ/660/311 ivo://CDS.VizieR/J/ApJ/660/311 doi:10.26093/cds/vizier.16600311 CDS Brown W.R. Geller M.J. Kenyon S.J. Kurtz M.J. Bromley B.C. 2017-09-22T16:16:10Z 2008-11-01T13:34:32Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr surveys galaxies radial-velocity visible-astronomy sloan-photometry Hypervelocity stars (HVSs) are stars ejected completely out of the Milky Way by three-body interactions with the massive black hole in the Galactic center. We describe 643 new spectroscopic observations from our targeted survey for HVSs. We find a significant (3.5{sigma}) excess of B-type stars with large velocities +275km/s<V_rf_<450km/s and distances d>10kpc that are most plausibly explained as a new class of HVSs: stars ejected from the Galactic center on bound orbits. If a Galactic center ejection origin is correct, the distribution of HVSs on the sky should be anisotropic for a survey complete to a fixed limiting apparent magnitude. The unbound HVSs in our survey have a marginally anisotropic distribution on the sky, consistent with the Galactic center ejection picture. 2007ApJ...660..311B https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/660/311 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/ApJ/647/303 : Spectroscopic survey of hypervelocity stars (Brown+, 2006) J/ApJ/671/1708 : Hypervelocity stars. III (Brown+, 2007) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/660/311 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/660/311 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/660/311 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/660/311 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/660/311 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/660/311 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJ/660/311/table1 (Possible found High-Velocity Stars.) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/660/311/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/660/311/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/660/311/table1? GET text/xml+votable 180.0 50000 true 117.4593333 24.6447778 0.005555555555555556 Cone search capability for table J/ApJ/660/311/table2 (*HVS Survey: new observations) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/660/311/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/660/311/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/660/311/table2? GET text/xml+votable 180.0 50000 true 51.666625 -6.6014722 0.005555555555555556 6/4116 4128 4135 4146 4149 4150 4157 4178 4203 4213 4232 4236 4258 4358 4369 4603 4606 4607 4669 4747 4751 4756 4763 4767 4785 4797 4800 4814 4849 4917 4934 4943 4952 4961 4962 4976 4988 5034 5036 5050 5066 5085 5086 5096 5104 5119 5209 5220 5221 5245 5274 5310 5325 5327 5328 5356 5393 5396 5429 5431 5446 5450 5459 5583 5599 5607 5619 5653 5668 5672 5676 5700 5704 5724 5750 5771 5777 5852 5871 5883 5907 5936 5972 5983 6016 6037 6039 6044 6110 6117 6121 6132 6137 6138 6162 6165 6196 6208 6218 6223 6231 6236 6356 6357 6398 6399 6406 6411 6434 6443 6464 6481 6488 6492 6501 6509 6579 6585 6595 6615 6632 6633 6636 6649 6651 6739 6933 7184 7257 7265 7272 7283 7286 7342 7352 7405 7411 7434 7450 7460 7462 7465 7476 7513 7566 7607 8199 8203 8215 8216 8218 8220 8221 8229 8241 8262 8267 8270 8282 8286 8308 8337 8341 8346 8351 8362 8374 8377 8386 8393 8416 8503 8507 8509 8522 8523 8553 8554 8571 8600 8620 8629 8645 8646 8653 8657 8658 8665 8666 8667 8676 8678 8680 8690 8696 8704 8705 8708 8710 8711 8713 8828 8829 8830 8923 8935 8952 8961 8962 8966 8969 8975 8987 8992 9005 9035 9056 9059 9065 9069 9078 9084 9097 9116 9119 9121 9123 9135 9136 9137 9140 9144 9155 9159 9215 9250 9252 9259 9276 9279 9337 9339 9343 9348 9365 9367 9369 9370 9374 9376 9380 9386 9393 9395 9396 9399 9401 9413 9414 9422 9424 9436 9447 9448 9451 9456 9457 9458 9602 9606 9613 9624 9632 9637 9639 9642 9645 9646 9648 9735 9761 9769 9782 9784 9785 9789 9794 9796 9818 9821 9859 9869 9872 9873 9887 9888 9894 9896 9907 9908 9917 9924 9927 9931 9932 9958 9963 9983 9988 9991 9997 10009 10145 10188 10191 10213 10223 10309 10322 10327 10335 10336 10350 10414 10420 10436 10440 10444 10451 10516 10525 10528 10531 10536 10553 10574 10575 10596 10607 10627 10645 10646 10654 10659 10660 10689 10691 10696 10780 10784 10796 10798 10809 10823 10827 10855 10868 10915 10923 10946 10972 10990 10993 10995 11006 11010 11020 11050 11056 11058 11060 11061 11078 11100 11132 11139 11144 11152 11192 11217 11222 11223 11232 11233 11234 11244 11245 11247 11253 11257 11260 11264 11319 11323 11332 11348 11350 11366 11369 11373 11397 11405 11417 11419 11426 11556 11585 11590 11591 11593 11779 11809 11880 11913 11925 11956 17304 18495 18519 18524 18581 18586 18589 18605 18607 18608 18610 18626 18687 18688 18767 18795 18854 18855 18865 18945 19028 19031 19034 19049 19054 19425 19428 20001 21844 21882 21919 21961 21969 21970 21972 21984 21998 21999 22012 22340 22492 23046 25585 25594 25855 25887 25943 25949 25962 25974 25988 25993 26001 26005 26007 26048 26061 26065 26074 26100 26102 26104 26165 26180 26185 26193 26196 26214 26224 26232 26244 26250 26264 26281 26292 26297 26302 26329 26342 26351 26355 26371 26375 26380 26383 26399 26400 26437 26461 26482 26492 26519 26520 26522 26533 26535 26539 26544 26546 26548 26551 26555 26559 26567 26571 26586 26592 26594 26597 26598 26602 26910 26911 26949 26951 26964 26991 27021 27028 27032 27051 27074 27075 27078 27085 27104 27105 27106 27123 27247 27283 27290 27301 27311 27312 27322 27323 27328 27337 27395 27431 27475 27486 27504 27515 27540 27550 27557 27584 27602 27603 27609 27622 27652 27665 27717 27732 27736 27742 27759 27763 27770 27782 27796 27830 27835 27840 27846 27854 27861 27864 27868 27877 27884 27888 27889 27907 27908 27911 27913 27918 27932 27938 27940 27945 27947 27954 27968 28163 28176 28181 28184 28574 28612 28620 28646 28669 36727 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/660/311?format=ascii Optical default J/ApJ/660/311/table1 Possible found High-Velocity Stars. Sloan Display the SDSS data meta.ref.url char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS SDSS name (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char Glon Galactic longitude deg pos.galactic.lon Glat Galactic latitude deg pos.galactic.lat float Vhelio Heliocentric velocity (computed from Vrf with formula: Vhelio = Vrf-(10cosl*cosb+5.2sinl*cosb+7.2sinb)-220sinl*cosb km/s spect.dopplerVeloc;pos.heliocentric int nullable Vrf Rest-frame (galactocentric) velocity km/s phys.veloc;pos.galactocentric int Sp Spectral type src.spType char Ra Galactocentric distance assuming a MS star (main-sequence) kpc pos.distance;pos.galactocentric int Rb Galactocentric distance assuming a BHB star (blue horizontal branch) kpc pos.distance;pos.galactocentric int Simbad Simbad column added by the CDS char _RA Position (derived from SDSS name) (right ascension part) deg pos.eq.ra;meta.main _DE Position (derived from SDSS name) (declination part) deg pos.eq.dec;meta.main
J/ApJ/660/311/table2 *HVS Survey: new observations recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RAJ2000 Hour of Right Ascension (J2000) pos.eq.ra;meta.main DEJ2000 Degree of Declination (J2000) pos.eq.dec;meta.main g'mag Apparent g' band magnitude mag phot.mag;em.opt.B float e_g'mag Uncertainty in gmag mag stat.error;phot.mag;em.opt.B float (u'-g')0 Intrinsic (u'-g') color mag phot.color float e_(u'-g')0 Uncertainty in (u-g)0 mag stat.error float (g'-r')0 Intrinsic (g'-r') color mag phot.color float e_(g'-r')0 Uncertainty in (g-r)0 mag stat.error float WD [0/1] code 1=White dwarf, 0=B-type star src.class int HV Heliocentric velocity km/s spect.dopplerVeloc;pos.heliocentric int e_HV Uncertainty in HV km/s stat.error int