Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Devey, C. R."'
We present the results of a photometric BVI survey of 0.9 square degrees around the Wolf-Rayet binary gamma^2 Vel and its early-type companion gamma^1 Vel. Several hundred PMS stars are identified and the youth of a subset of these is confirmed by th
Externí odkaz:
http://arxiv.org/abs/0810.5320
Publikováno v:
Mon.Not.Roy.Astron.Soc. 351 (2004) 1401
We present a catalogue of RIZ photometry over an area of 0.855 square degrees, centred on NGC 2547. The survey is substantially complete to limits of R_c=21.5, I_c=19.5, Z=19.5. We use the catalogue to define NGC 2547 candidates with masses of about
Externí odkaz:
http://arxiv.org/abs/astro-ph/0404028
We present a VI photometric catalogue towards the open cluster Cr 121. XMM-Newton and ROSAT data are used to discover a low-mass pre-main sequence (PMS) along this sight-line. de Zeeuw et al (1999) identified Cr 121 as a moving group, using HIPPARCOS
Externí odkaz:
http://arxiv.org/abs/astro-ph/0308488
Publikováno v:
Mon.Not.Roy.Astron.Soc.345:1205,2003
We present a study of mass segregation of the young (20-35 Myr isochronal age), open cluster NGC 2547. We find good evidence that mass segregation exists in NGC 2547 down to 3 Msun, and weak evidence for mass segregation down to 1 Msun. Theoretical m
Externí odkaz:
http://arxiv.org/abs/astro-ph/0308320
Autor:
Oliveira, J. M., Jeffries, R. D., Devey, C. R., Navascues, D. Barrado y, Naylor, T., Stauffer, J. R., Totten, E. J.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 342 (2003) 651
We present the results of a photometric and spectroscopic survey of cool M dwarf candidates in the young open cluster NGC 2547. Using the 2dF fiber spectrograph, we have searched for the luminosity at which lithium remains unburned in an attempt to c
Externí odkaz:
http://arxiv.org/abs/astro-ph/0303083
Publikováno v:
Mon.Not.Roy.Astron.Soc. 335 (2002) 291
We have developed the techniques required to use the optimal photometry algorithm of Naylor (1998) to create colour-magnitude diagrams with well defined completeness functions. To achieve this we first demonstrate that the optimal extraction is insen
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205005
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