Zobrazeno 1 - 10
of 1 098
pro vyhledávání: '"Cunningham, T."'
Autor:
O'Brien, Mairi W., Tremblay, P. -E., Klein, B. L., Koester, D., Melis, C., Bédard, A., Cukanovaite, E., Cunningham, T., Doyle, A. E., Gänsicke, B. T., Fusillo, N. P. Gentile, Hollands, M. A., McCleery, J., Pelisoli, I., Toonen, S., Weinberger, A. J., Zuckerman, B.
Publikováno v:
MNRAS 527, 3 (2024) 8687-8705
We present a comprehensive overview of a volume-complete sample of white dwarfs located within 40 pc of the Sun, a significant proportion of which were detected in Gaia Data Release 3 (DR3). Our DR3 sample contains 1076 spectroscopically confirmed wh
Externí odkaz:
http://arxiv.org/abs/2312.02735
Singularities and asymptotic distribution of resonances for Schr\'odinger operators in one dimension
Autor:
Christiansen, T. J., Cunningham, T.
We obtain new results about the high-energy distribution of resonances for the one-dimensional Schr\"odinger operator. Our primary result is an upper bound on the density of resonances above any logarithmic curve in terms of the singular support of t
Externí odkaz:
http://arxiv.org/abs/2311.00804
Autor:
Rebassa-Mansergas, A., Maldonado, J., Raddi, R., Torres, S., Hoskin, M., Cunningham, T., Hollands, M. A., Ren, J., Gaensicke, B. T., Tremblay, P. -E., Camisassa, M.
Magnetic activity and rotation are related to the age of low-mass main sequence stars. To further constrain these relations, we study a sample of 574 main sequence stars members of common proper motion pairs with white dwarfs, identified thanks to Ga
Externí odkaz:
http://arxiv.org/abs/2310.02125
Autor:
O'Brien, Mairi W., Tremblay, P. -E., Fusillo, N. P. Gentile, Hollands, M. A., Gaensicke, B. T., Koester, D., Pelisoli, I., Cukanovaite, E., Cunningham, T., Doyle, A. E., Elms, A., Farihi, J., Hermes, J. J., Holberg, J., Jordan, S., Klein, B. L., Kleinman, S. J., Manser, C. J., De Martino, D., Marsh, T. R., McCleery, J., Melis, C., Nitta, A., Parsons, S. G., Raddi, R., Rebassa-Mansergas, A., Schreiber, M. R., Silvotti, R., Steeghs, D., Toloza, O., Toonen, S., Torres, S., Weinberger, A. J., Zuckerman, B.
We present a spectroscopic survey of 248 white dwarf candidates within 40 pc of the Sun; of these 244 are in the southern hemisphere. Observations were performed mostly with the Very Large Telescope (X-Shooter) and Southern Astrophysical Research Tel
Externí odkaz:
http://arxiv.org/abs/2210.01608
Autor:
Raddi, R., Torres, S., Rebassa-Mansergas, A., Maldonado, J., Camisassa, M. E., Koester, D., Fusillo, N. P. Gentile, Tremblay, P. -E., Dimpel, M., Heber, U., Cunningham, T., Ren, J. -J.
Publikováno v:
A&A 658, A22 (2022)
We present the first detailed 3D kinematic analysis of a sample of 3133 white dwarfs that use Gaia astrometry plus radial velocities, which were measured either by Gaia or by ground based spectroscopic observations. The sample includes either isolate
Externí odkaz:
http://arxiv.org/abs/2111.01145
Autor:
Rebassa-Mansergas, A., Maldonado, J., Raddi, R., Knowles, A. T., Torres, S., Hoskin, M., Cunningham, T., Hollands, M., Ren, J., Gaensicke, B. T., Tremblay, P. -E., Castro-Rodriguez, N., Camisassa, M., Koester, D.
The age-metallicity relation is a fundamental tool for constraining the chemical evolution of the Galactic disc. In this work we analyse the observational properties of this relation using binary stars that have not interacted consisting of a white d
Externí odkaz:
http://arxiv.org/abs/2105.13379
Autor:
Tremblay, P. -E., Hollands, M. A., Fusillo, N. P. Gentile, McCleery, J., Izquierdo, P., Gänsicke, B. T., Cukanovaite, E., Koester, D., Brown, W. R., Charpinet, S., Cunningham, T., Farihi, J., Giammichele, N., van Grootel, V., Hermes, J. J., Hoskin, M. J., Jordan, S., Kepler, S. O., Kleinman, S. J., Manser, C. J., Marsh, T. R., de Martino, D., Nitta, A., Parsons, S. G., Pelisoli, I., Raddi, R., Rebassa-Mansergas, A., Ren, J. -J., Schreiber, M. R., Silvotti, R., Toloza, O., Toonen, S., Torres, S.
We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from $\textit{Gaia}$ Data Release 2 (DR2) and in almost all cases h
Externí odkaz:
http://arxiv.org/abs/2006.00965
Autor:
MACGILLIVRAY, J. A., SACKETT, L. H., GILLAVRY, J. N. BOTTEMA-MAC, CUNNINGHAM, T. F., DOHERTY, C., DRIESSEN, J. M., EVELY, D., JEROME, P., KRZYSZKOWSKA, O. H., MYLONA, D., REESE, D., RUSSELL, J., SARPAKI, A., WALL-CROWTHER, S., WESTLAKE, P., YOUNGER, J. G.
Publikováno v:
The British School at Athens. Supplementary Volumes, 2019 Jan 01(48), iii-480.
Externí odkaz:
https://www.jstor.org/stable/45457014
We report on a comparison of spectroscopic analyses for hydrogen (DA) and helium atmosphere (DB) white dwarfs with Gaia Data Release 2 (DR2) parallaxes and photometry. We assume a reddening law and a mass-radius relation to connect the effective temp
Externí odkaz:
http://arxiv.org/abs/1811.03084
Autor:
Cunningham, T. LaRae.
Publikováno v:
Online access via UMI.
Thesis (Ph. D.)--State University of New York at Binghamton, Department of English, General Literature and Rhetoric, 2007.
Includes bibliographical references.
Includes bibliographical references.