%0 Journal Article %1 Farihi2013 %A Farihi, J. %A Gänsicke, B. T. %A Koester, D %D 2013 %K 2013 clusters hyades planetesimals planets %N March %P 7 %T Evidence of Rocky Planetesimals Orbiting Two Hyades Stars %U http://arxiv.org/abs/1302.6992 %V 000 %X The Hyades is the nearest open cluster, relatively young and containing numerous A-type stars; its known age, distance, and metallicity make it an ideal site to study planetary systems around 2-3 Msun stars at an epoch similar to the late heavy bombardment. Hubble Space Telescope far-ultraviolet spectroscopy strongly suggests ongoing, external metal pollution in two remnant Hyads. For ongoing accretion in both stars, the polluting material has logn(Si)/n(C) > 0.2, is more carbon deficient than chondritic meteorites, and is thus rocky. These data are consistent with a picture where rocky planetesimals and small planets have formed in the Hyades around two main-sequence A-type stars, whose white dwarf descendants bear the scars. These detections via metal pollution are shown to be equivalent to infrared excesses of Lir/L* \~ 1e-6 in the terrestrial zone of the stars.

@article{Farihi2013, abstract = {The Hyades is the nearest open cluster, relatively young and containing numerous A-type stars; its known age, distance, and metallicity make it an ideal site to study planetary systems around 2-3 Msun stars at an epoch similar to the late heavy bombardment. Hubble Space Telescope far-ultraviolet spectroscopy strongly suggests ongoing, external metal pollution in two remnant Hyads. For ongoing accretion in both stars, the polluting material has log[n(Si)/n(C)] > 0.2, is more carbon deficient than chondritic meteorites, and is thus rocky. These data are consistent with a picture where rocky planetesimals and small planets have formed in the Hyades around two main-sequence A-type stars, whose white dwarf descendants bear the scars. These detections via metal pollution are shown to be equivalent to infrared excesses of Lir/L* \~{} 1e-6 in the terrestrial zone of the stars.}, added-at = {2013-08-03T21:51:48.000+0200}, archiveprefix = {arXiv}, arxivid = {1302.6992}, author = {Farihi, J. and G\"{a}nsicke, B. T. and Koester, D}, biburl = {https://www.bibsonomy.org/bibtex/2a417de86cb7934adaa3ecb00472ff97f/danielcarrera}, eprint = {1302.6992}, file = {:home/daniel/Downloads/1302.6992.pdf:pdf}, interhash = {f2dc3991202b067bdfdb2cf8dc5c7dbb}, intrahash = {a417de86cb7934adaa3ecb00472ff97f}, keywords = {2013 clusters hyades planetesimals planets}, month = feb, number = {March}, pages = 7, timestamp = {2014-07-29T13:44:36.000+0200}, title = {{Evidence of Rocky Planetesimals Orbiting Two Hyades Stars}}, url = {http://arxiv.org/abs/1302.6992}, volume = 000, year = 2013 }