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Transiting extrasolar planetary candidates in the Galactic bulge.
Nature 2006; 443(7111):534-40Nat

Abstract

More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to reflex motions of their host stars, and more recently through transits of some planets across the faces of the host stars. The detection of planets with the shortest known periods, 1.2-2.5 days, has mainly resulted from transit surveys which have generally targeted stars more massive than 0.75 M(o), where M(o) is the mass of the Sun. Here we report the results from a planetary transit search performed in a rich stellar field towards the Galactic bulge. We discovered 16 candidates with orbital periods between 0.4 and 4.2 days, five of which orbit stars of masses in the range 0.44-0.75 M(o). In two cases, radial-velocity measurements support the planetary nature of the companions. Five candidates have orbital periods below 1.0 day, constituting a new class of ultra-short-period planets, which occur only around stars of less than 0.88 M(o). This indicates that those orbiting very close to more-luminous stars might be evaporatively destroyed or that jovian planets around stars of lower mass might migrate to smaller radii.

Authors+Show Affiliations

Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, Maryland 21218, USA. ksahu@stsci.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17024085

Citation

Sahu, Kailash C., et al. "Transiting Extrasolar Planetary Candidates in the Galactic Bulge." Nature, vol. 443, no. 7111, 2006, pp. 534-40.
Sahu KC, Casertano S, Bond HE, et al. Transiting extrasolar planetary candidates in the Galactic bulge. Nature. 2006;443(7111):534-40.
Sahu, K. C., Casertano, S., Bond, H. E., Valenti, J., Smith, T. E., Minniti, D., ... Lubow, S. (2006). Transiting extrasolar planetary candidates in the Galactic bulge. Nature, 443(7111), pp. 534-40.
Sahu KC, et al. Transiting Extrasolar Planetary Candidates in the Galactic Bulge. Nature. 2006 Oct 5;443(7111):534-40. PubMed PMID: 17024085.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Transiting extrasolar planetary candidates in the Galactic bulge. AU - Sahu,Kailash C, AU - Casertano,Stefano, AU - Bond,Howard E, AU - Valenti,Jeff, AU - Smith,T Ed, AU - Minniti,Dante, AU - Zoccali,Manuela, AU - Livio,Mario, AU - Panagia,Nino, AU - Piskunov,Nikolai, AU - Brown,Thomas M, AU - Brown,Timothy, AU - Renzini,Alvio, AU - Rich,R Michael, AU - Clarkson,Will, AU - Lubow,Stephen, PY - 2005/03/18/received PY - 2006/08/10/accepted PY - 2006/10/7/pubmed PY - 2006/10/7/medline PY - 2006/10/7/entrez SP - 534 EP - 40 JF - Nature JO - Nature VL - 443 IS - 7111 N2 - More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to reflex motions of their host stars, and more recently through transits of some planets across the faces of the host stars. The detection of planets with the shortest known periods, 1.2-2.5 days, has mainly resulted from transit surveys which have generally targeted stars more massive than 0.75 M(o), where M(o) is the mass of the Sun. Here we report the results from a planetary transit search performed in a rich stellar field towards the Galactic bulge. We discovered 16 candidates with orbital periods between 0.4 and 4.2 days, five of which orbit stars of masses in the range 0.44-0.75 M(o). In two cases, radial-velocity measurements support the planetary nature of the companions. Five candidates have orbital periods below 1.0 day, constituting a new class of ultra-short-period planets, which occur only around stars of less than 0.88 M(o). This indicates that those orbiting very close to more-luminous stars might be evaporatively destroyed or that jovian planets around stars of lower mass might migrate to smaller radii. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/17024085/Transiting_extrasolar_planetary_candidates_in_the_Galactic_bulge_ L2 - https://doi.org/10.1038/nature05158 DB - PRIME DP - Unbound Medicine ER -