Zobrazeno 1 - 10
of 964
pro vyhledávání: '"Tremblay, P E"'
Autor:
Rouis, Lou Baya Ould, Hermes, J. J., Gänsicke, Boris T., Sahu, Snehalata, Koester, Detlev, Tremblay, P. -E., Veras, Dimitri, Farihi, Jay, Heintz, Tyler M., Fusillo, Nicola Pietro Gentile, Redfield, Seth
As the descendants of stars with masses less than 8 M$_{\odot}$ on the main sequence, white dwarfs provide a unique way to constrain planetary occurrence around intermediate-mass stars (spectral types BAF) that are otherwise difficult to measure with
Externí odkaz:
http://arxiv.org/abs/2410.06335
Autor:
Cooper, W. J., Jones, H. R. A., Smart, R. L., Folkes, S. L., Caballero, J. A., Marocco, F., Ortiz, M. C. Gálvez, Burgasser, A. J., Kirkpatrick, J. D., Sarro, L. M., Burningham, B., Cabrera-Lavers, A., Tremblay, P. E., Reylé, C., Lodieu, N., Zhang, Z. H., Cook, N. J., Faherty, J. F., García-Álvarez, D., Montes, D., Pinfield, D. J., Rajpurohit, A. S., Shi, J.
As part of our comprehensive, ongoing characterisation of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS instrument at the 10.4 m Gran Telescopio Canarias to acquire low- and mid-resolution (R$\approx$300 and R$\
Externí odkaz:
http://arxiv.org/abs/2409.03706
Autor:
Munday, James, Pelisoli, Ingrid, Tremblay, P. E., Marsh, T. R., Nelemans, Gijs, Bédard, Antoine, Toonen, Silvia, Breedt, Elmé, Cunningham, Tim, O'Brien, Mairi W., Dawson, Harry
We present the first discoveries of the double-lined double white dwarf (DBL) survey that targets over-luminous sources with respect to the canonical white dwarf cooling sequence according to a set of well-defined criteria. The primary goal of the DB
Externí odkaz:
http://arxiv.org/abs/2407.02594
Autor:
López-Sanjuan, C., Tremblay, P. -E., O'Brien, M. W., Spinoso, D., Ederoclite, A., Ramió, H. Vázquez, Cenarro, A. J., Marín-Franch, A., Civera, T., Carrasco, J. M., Gänsicke, B. T., Fusillo, N. P. Gentile, Hernán-Caballero, A., Hollands, M. A., del Pino, A., Sánchez, H. Domínguez, Fernández-Ontiveros, J. A., Jiménez-Esteban, F. M., Rebassa-Mansergas, A., Schmidtobreick, L., Angulo, R. E., Cristòbal-Hornillos, D., Dupke, R. A., Hernández-Monteagudo, C., Moles, M., Sodré Jr., L., Varela, J.
We used the Javalambre Photometric Local Universe Survey (J-PLUS) DR2 photometry in twelve optical bands over 2176 deg2 to estimate the fraction of white dwarfs with presence of CaII H+K absorption along the cooling sequence. We compared the J-PLUS p
Externí odkaz:
http://arxiv.org/abs/2406.16055
Autor:
Heintz, Tyler M., Hermes, J. J., Tremblay, P. -E., Rouis, Lou Baya Ould, Redding, Joshua S., Kaiser, B. C., van Saders, Jennifer L.
White dwarf stars have been used for decades as precise and accurate age indicators. This work presents a test of the reliability of white dwarf total ages when spectroscopic observations are available. We conduct follow-up spectroscopy of 148 indivi
Externí odkaz:
http://arxiv.org/abs/2405.02423
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
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:
Munday, James, Tremblay, P. -E., Hermes, J. J., Barlow, Brad, Pelisoli, Ingrid, Marsh, T. R., Parsons, Steven G., Jones, David, Kepler, S. O., Brown, Alex, Littlefair, S. P., Hegedus, R., Baran, Andrzej, Breedt, Elmé, Dhillon, V. S., Dyer, Martin J., Green, Matthew J., Kennedy, Mark R., Kerry, Paul, Lopez, Isaac D., Romero, Alejandra D., Sahman, Dave, Worters, Hannah L.
We present the discovery of the eclipsing double white dwarf (WD) binary WDJ 022558.21-692025.38 that has an orbital period of 47.19 min. Following identification with the Transiting Exoplanet Survey Satellite, we obtained time-series ground based sp
Externí odkaz:
http://arxiv.org/abs/2308.00036
Autor:
Bhat, N. D. R., Swainston, N. A., McSweeney, S. J., Xue, M., Meyers, B. W., Kudale, S., Dai, S., Tremblay, S. E., van Straten, W., Shannon, R. M., Smith, K. R., Sokolowski, M., Ord, S. M., Sleap, G., Williams, A., Hancock, P. J., Lange, R., Tocknell, J., Johnston-Hollitt, M., Kaplan, D. L., Tingay, S. J., Walker, M.
In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA's large field-of-view and the voltage capture system brings a survey speed of ~
Externí odkaz:
http://arxiv.org/abs/2302.11920
Autor:
Bhat, N. D. R., Swainston, N. A., McSweeney, S. J., Xue, M., Meyers, B. W., Kudale, S., Dai, S., Tremblay, S. E., van Straten, W., Shannon, R. M., Smith, K. R., Sokolowski, M., Ord, S. M., Sleap, G., Williams, A., Hancock, P. J., Lange, R., Tocknell, J., Johnston-Hollitt, M., Kaplan, D. L., Tingay, S. J., Walker, M.
We present an overview of the Southern-sky MWA Rapid Two-metre (SMART) pulsar survey that exploits the MWA's large field of view and voltage capture system to survey the sky south of 30 degree in declination for pulsars and fast transients in the 140
Externí odkaz:
http://arxiv.org/abs/2302.11911