中文

0.5M$_J$凌星系外行星WASP-13b

地球与行星天体物理 2015-05-13 v1 太阳与恒星天体物理

摘要

我们报告了WASP-13b的发现,这是一颗低质量(Mp=0.460.05+0.06MJ M_p = 0.46 ^{+ 0.06}_{- 0.05} M_J)凌星系外行星,轨道周期为4.35298±0.000044.35298 \pm 0.00004天。凌星深度为9毫米星等,尽管我们的后续测光无法很好地约束碰撞参数(0<b<0.460 < b < 0.46),但半径在Rp1.061.21RJR_p \sim 1.06 - 1.21 R_J范围内,WASP-13b在质量-半径平面上的位置与H/He主导、受辐照、低核质量和无核理论模型一致。G1V型主星在质量(M=1.030.09+0.11M_{*} = 1.03^{+0.11}_ {- 0.09} M_{\odot})和金属丰度([M/H]=0.0±0.20.0\pm0.2)上与太阳相似,但可能更年老(8.54.9+5.58.5^{+ 5.5}_{- 4.9} Gyr)。

关键词

引用

@article{arxiv.0905.3115,
  title  = {The 0.5M$_J$ transiting exoplanet WASP-13b},
  author = {I. Skillen and D. Pollacco and A. Collier Cameron and L. Hebb and E. Simpson and F. Bouchy and D. J. Christian and N. P. Gibson and G. Hébrard and Y. C. Joshi and B. Loeillet and B. Smalley and H. C. Stempels and R. A. Street and S. Udry and R. G. West and D. R. Anderson and S. C. C. Barros and B. Enoch and C. A. Haswell and C. Hellier and K. Horne and J. Irwin and F. P. Keenan and T. A. Lister and P. Maxted and M. Mayor and C. Moutou and A. J. Norton and N. Parley and D. Queloz and R. Ryans and I. Todd and P. J. Wheatley and D. M. Wilson},
  journal= {arXiv preprint arXiv:0905.3115},
  year   = {2015}
}

备注

4 pages. Accepted for publication in Astronomy and Astrophysics