Zobrazeno 1 - 6
of 6
pro vyhledávání: '"S. R. G. Joyce"'
Autor:
Jonathan D. Nichols, Manuel Güdel, Richard Alexander, S. R. G. Joyce, K. L. Page, Yanina Metodieva, John P. Pye
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters
PDS 70 is a $\sim$5 Myr old star with a gas and dust disc in which several proto-planets have been discovered. We present the first UV detection of the system along with X-ray observations taken with the \textit{Neil Gehrels Swift Observatory} satell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44e4c946a0d60f66995f22e7760df863
https://doi.org/10.1093/mnrasl/slz169
https://doi.org/10.1093/mnrasl/slz169
Autor:
S. R. G. Joyce, Sarah L. Casewell, Howard E. Bond, Martin A. Barstow, Matthew R. Burleigh, Jay B. Holberg
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 481:2361-2370
Einstein's theory of General Relativity predicts that the light from stars will be gravitationally shifted to longer wavelengths. We previously used this effect to measure the mass of the white dwarf Sirius B from the wavelength shift observed in its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e2d68636f7464cbeca61bf13f25083d
https://doi.org/10.1093/mnras/sty2404
https://doi.org/10.1093/mnras/sty2404
Publikováno v:
Proceedings of the International Astronomical Union. 12:301-304
White dwarfs are becoming useful tools for many areas of astronomy. They can be used as accurate chronometers over Gyr timescales. They are also clues to the history of star formation in our galaxy. Many of these studies require accurate estimates of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7091ace245042f796a26b5dec2ed6ce9
https://doi.org/10.1017/s1743921317005373
https://doi.org/10.1017/s1743921317005373
Autor:
Manuel Güdel, Maria Morales-Calderon, Jonathan D. Nichols, Antoine Strugarek, S. R. G. Joyce, Colin P. Johnstone, David Barrado, Nuria Huélamo, Pierre-Olivier Lagage, Jérémy Ahuir, Enrique Solano, Allan Sacha Brun, M. J. López, John P. Pye, Rafael A. García
The primary objectives of the ExoplANETS-A project are to: establish new knowledge on exoplanet atmospheres; establish new insight on influence of the host star on the planet atmosphere; disseminate knowledge, using online, web-based platforms. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a04b3aeb0b3e853a0fdf7ae990ab4174
http://arxiv.org/abs/1903.00234
http://arxiv.org/abs/1903.00234
Autor:
Alejandro H. Córsico, Souza Oliveira Kepler, G. R. Lauffer, Alejandra D. Romero, S. R. G. Joyce
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We present a study of the dependence of the mass–radius relation for DA white dwarf stars on the hydrogen envelope mass and the impact on the value of log g, and thus the determination of the stellar mass. We employ a set of full evolutionary carbo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::315167f3b22a0361aa91ac937ef913cc
http://sedici.unlp.edu.ar/handle/10915/125354
http://sedici.unlp.edu.ar/handle/10915/125354
Autor:
S. R. G. Joyce, Sarah L. Casewell, Matthew R. Burleigh, Jay B. Holberg, Martin A. Barstow, Howard E. Bond
Publikováno v:
Monthly Notices of the Royal Astronomical Society.
Observational tests of the white dwarf mass-radius relationship have always been limited by the uncertainty in the available distance measurements. Most studies have focused on Balmer line spectroscopy because these spectra can be obtained from groun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf55e3357929f5e6bbe217462eb21865
https://doi.org/10.1093/mnras/sty1425
https://doi.org/10.1093/mnras/sty1425