Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Zhoujian Zhang"'
We present a large forward-modeling analysis for 55 late-T (T7-T9) dwarfs, using low-resolution ($R\approx150$) near-infrared spectra and cloudless Sonora-Bobcat model atmospheres. We derive the objects' effective temperatures, surface gravities, met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::696e9574d440a40eab922530991d5bf8
Autor:
Beth Biller, Katelyn N. Allers, Blake Pantoja, Loic Albert, Trent J. Dupuy, Sophie Dubber, Michael C. Liu, Zhoujian Zhang, C. Fontanive
Publikováno v:
Fontanive, C, Allers, K N, Pantoja, B, Biller, B, Dubber, S, Zhang, Z, Dupuy, T, Liu, M C & Albert, L 2020, ' A wide planetary-mass companion to a young low-mass brown dwarf in Ophiuchus ', Astrophysical Journal Letters, vol. 905, no. 2, L14, pp. 1-7 . https://doi.org/10.3847/2041-8213/abcaf8
We present the discovery of a planetary-mass companion to CFHTWIR-Oph 98, a low-mass brown dwarf member of the young Ophiuchus star-forming region, with a wide 200-au separation (1.46 arcsec). The companion was identified using Hubble Space Telescope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57d6417a84bd0039c8b8da0560d78df5
https://www.pure.ed.ac.uk/ws/files/185237990/2011.08871v1.pdf
https://www.pure.ed.ac.uk/ws/files/185237990/2011.08871v1.pdf
Autor:
Zhoujian Zhang, Philippe Zarka, Joseph R. Callingham, L. Lamy, Aleksandar Shulevski, Timothy W. Shimwell, H. J. A. Röttgering, William M. J. Best, Kaushik De, Harish Vedantham, Michael C. Liu, Trent J. Dupuy
Publikováno v:
Vedantham, H K, Callingham, J R, Shimwell, T W, Dupuy, T, Best, W M J, Liu, M C, Zhang, Z, De, K, Lamy, L, Zarka, P, Rottgering, H J A & Shulevski, A 2020, ' Direct radio discovery of a cold brown dwarf ', Astrophysical Journal Letters, vol. 903, no. L33, pp. 1-13 . https://doi.org/10.3847/2041-8213/abc256
Astrophysical Journal Letters, 903(2):33. IOP PUBLISHING LTD
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2020, 903 (2), pp.L33. ⟨10.3847/2041-8213/abc256⟩
The Astrophysical Journal Letters, 903(2), L33
Astrophysical Journal Letters, 903(2):33. IOP PUBLISHING LTD
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2020, 903 (2), pp.L33. ⟨10.3847/2041-8213/abc256⟩
The Astrophysical Journal Letters, 903(2), L33
Magnetospheric processes seen in gas-giants such as aurorae and circularly-polarized cyclotron maser radio emission have been detected from some brown dwarfs. However, previous radio observations targeted known brown dwarfs discovered via their infra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd28afcd433bf0b082367c279c8b0975
https://hdl.handle.net/1887/3133590
https://hdl.handle.net/1887/3133590
Autor:
Peter W. Draper, Richard J. Wainscoat, Christopher Waters, K. C. Chambers, Klaus-Werner Hodapp, Eugene A. Magnier, Rolf-Peter Kudritzki, William M. J. Best, H. Flewelling, Zhoujian Zhang, Nick Kaiser, Michael C. Liu, Nigel Metcalfe, Kimberly M. Aller
Publikováno v:
Astrophysical journal, 2018, Vol.858(1), pp.41 [Peer Reviewed Journal]
We are conducting a proper-motion survey for young brown dwarfs in the Taurus-Auriga molecular cloud based on the Pan-STARRS1 3$��$ Survey. Our search uses multi-band photometry and astrometry to select candidates, and is wider (370 deg$^{2}$) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::008eff0968a48aa3810529c5b570efc9
http://dro.dur.ac.uk/24891/1/24891.pdf
http://dro.dur.ac.uk/24891/1/24891.pdf
Autor:
Kimberly M. Aller, Nigel Metcalfe, R. P. Kudritzki, Michael C. Liu, W. S. Burgett, Peter W. Draper, John L. Tonry, Richard J. Wainscoat, H. Flewelling, K. C. Chambers, Nick Kaiser, William M. J. Best, Zhoujian Zhang, Christopher Waters, Eugene A. Magnier
Publikováno v:
NASA Astrophysics Data System
Astrophysical journal supplement series, 2018, Vol.234(1), pp.1 [Peer Reviewed Journal]
Astrophysical journal supplement series, 2018, Vol.234(1), pp.1 [Peer Reviewed Journal]
We present a catalog of 9888 M, L and T dwarfs detected in the Pan-STARRS1 3$\pi$ Survey (PS1), covering three-quarters of the sky. Our catalog contains nearly all known objects of spectral types L0-T2 in the PS1 field, with objects as early as M0 an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77347bf5b86a4a830953a38692ba0139
https://ui.adsabs.harvard.edu/#abs/2017arXiv170100490B
https://ui.adsabs.harvard.edu/#abs/2017arXiv170100490B