Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Deacon, N. R."'
Autor:
Deacon, N. R., Kraus, A. L.
The population statistics of binary stars are an important output of star formation models. However populations of wide binaries evolve over time due to interactions within a system's birth environment and the unfolding of wide, hierarchical triple s
Externí odkaz:
http://arxiv.org/abs/2006.06679
We present stellar parameter estimates for 939,457 southern FGK stars that are candidate targets for the TESS mission. Using a data-driven method similar to the CANNON, we build a model of stellar colours as a function of stellar parameters. We then
Externí odkaz:
http://arxiv.org/abs/1903.03115
Autor:
Deacon, N. R., Magnier, E. A., Best, William M. J., Liu, Michael C., Dupuy, T. J., Chambers, K. C., Draper, P. W., Flewelling, H., Metcalfe, N., Tonry, J. L., Wainscoat, R. J., Waters, C.
Using shape measurement techniques developed for weak lensing surveys we have identified three new ultracool binaries in the Pan-STARRS1 survey. Binary companions which are not completely resolved can still alter the shapes of stellar images. These s
Externí odkaz:
http://arxiv.org/abs/1702.05491
Autor:
Deacon, N. R., Magnier, E. A., Liu, Michael C., Schlieder, Joshua E., Aller, Kimberly M., Best, William M. J., Bowler, Brendan P., Burgett, W. S., Chambers, K. C., Draper, P. W., Flewelling, H., Hodapp, K. W., Kaiser, N., Metcalfe, N., Sweeney, W. E., Wainscoat, R. J., Waters, C.
We present the discovery of a 360 AU separation T3 companion to the tight (3.1 AU) M4.5+M6.5 binary 2MASS J02132062+3648506. This companion was identified using Pan-STARRS1 data and, despite its relative proximity to the Sun (22.2$_{-4.0}^{+6.4}$ pc;
Externí odkaz:
http://arxiv.org/abs/1701.03104
Autor:
Deacon, N. R., Kraus, A. L., Mann, A. W., Magnier, E. A., Chambers, K. C., Wainscoat, R. J., Tonry, J. L., Kaiser, N., Waters, C., Flewelling, H., Hodapp, K. W., Burgett, W. S.
The NASA Kepler mission has revolutionised time-domain astronomy and has massively expanded the number of known extrasolar planets. However, the effect of wide multiplicity on exoplanet occurrence has not been tested with this dataset. We present a s
Externí odkaz:
http://arxiv.org/abs/1509.04712
Autor:
Deacon, N. R., Hoard, D. W., Magnier, E. A., Jadhav, Y. S., Huber, M., Chambers, K. C., Flewelling, H., Hodapp, K. W., Kaiser, N., Kudritzki, R. P., Metcalfe, N., Waters, C.
Nova Delphini 2013 was identified on the 14th of August 2013 and eventually rose to be a naked eye object. We sought to study the behaviour of the object in the run-up to outburst and to compare it to the pre-outburst photometric characteristics of o
Externí odkaz:
http://arxiv.org/abs/1402.5968
Autor:
Crossfield, I. J. M., Biller, B., Schlieder, J. E., Deacon, N. R., Bonnefoy, M., Homeier, D., Allard, F., Buenzli, E., Henning, Th., Brandner, W., Goldman, B., Kopytova, T.
Publikováno v:
Nature 2014, 505, 654-656
Brown dwarfs -- substellar bodies more massive than planets but not massive enough to initiate the sustained hydrogen fusion that powers self-luminous stars -- are born hot and slowly cool as they age. As they cool below about 2,300 K, liquid or crys
Externí odkaz:
http://arxiv.org/abs/1401.8145
We report the detection of a wide young hierarchical triple system where the primary has a candidate debris disc. The primary, TYC 5241-986-1 A, is a known Tycho star which we classify as a late-K star with emission in the X-ray, near and far-UV and
Externí odkaz:
http://arxiv.org/abs/1306.2637
Over the past decades open clusters have been the subject of many studies. Such studies are crucial considering that the universality of the Initial Mass Function is still a subject of current investigations. Praesepe is an interesting open cluster f
Externí odkaz:
http://arxiv.org/abs/1208.0466
We present the results of a deep (J=19.1 mag) infrared (ZYJHK) survey over the full Alpha Persei open cluster extracted from the Data Release 9 of the UKIRT Infrared Deep Sky Survey Galactic Clusters Survey. We have selected ~700 cluster member candi
Externí odkaz:
http://arxiv.org/abs/1207.6978