Zobrazeno 1 - 10
of 16 089
pro vyhledávání: '"Zuckerman, B."'
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:
Rogers, L. K., Bonsor, A., Xu, S., Dufour, P., Klein, B. L., Buchan, A., Hodgkin, S., Hardy, F., Kissler-Patig, M., Melis, C., Weinberger, A. J., Zuckerman, B.
Observations of planetary material polluting the atmospheres of white dwarfs are an important probe of the bulk composition of exoplanetary material. Medium- and high-resolution optical and ultraviolet spectroscopy of seven white dwarfs with known ci
Externí odkaz:
http://arxiv.org/abs/2311.14048
Autor:
Vennes, Stephane, Kawka, Adela, Klein, Beth L., Zuckerman, B., Weinberger, Alycia J., Melis, Carl
We present an analysis of spectroscopic data of the cool, highly magnetic and polluted white dwarf 2MASS J0916-4215. The atmosphere of the white dwarf is dominated by hydrogen, but numerous spectral lines of magnesium, calcium, titanium, chromium, ir
Externí odkaz:
http://arxiv.org/abs/2311.07937
Autor:
Owens, Dylan, Xu, Siyi, Manjavacas, Elena, Leggett, S. K., Casewell, S. L., Dennihy, Erik, Dufour, Patrick, Klein, Beth L., Yeh, Sherry, Zuckerman, B.
Excess infrared flux from white dwarf stars is likely to arise from a dusty debris disk or a cool companion. In this work, we present near-infrared spectroscopic observations with Keck/MOSFIRE, Gemini/GNIRS, and Gemini/Flamingos-2 of seven white dwar
Externí odkaz:
http://arxiv.org/abs/2303.16330
Autor:
Doyle, Alexandra E., Klein, Beth L., Dufour, Patrick, Melis, Carl, Zuckerman, B., Xu, Siyi, Weinberger, Alycia J., Trierweiler, Isabella L., Monson, Nathaniel N., Jura, Michael A., Young, Edward D.
We present observations and analyses of eight white dwarf stars that have accreted rocky material from their surrounding planetary systems. The spectra of these helium-atmosphere white dwarfs contain detectable optical lines of all four major rock-fo
Externí odkaz:
http://arxiv.org/abs/2303.00063
Ultraviolet and optical spectra of the hydrogen-dominated atmosphere white dwarf star G238-44 obtained with FUSE, Keck/HIRES, HST/COS, and HST/STIS reveal ten elements heavier than helium: C, N, O, Mg, Al, Si, P, S, Ca, and Fe. G238-44 is only the th
Externí odkaz:
http://arxiv.org/abs/2211.02673
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:
Zuckerman, B.
It has been hypothesized that advanced technological civilizations will construct giant space colonies and supporting infrastructures to orbit about their home stars. With data from recent satellites that operate at infrared and optical wavelengths (
Externí odkaz:
http://arxiv.org/abs/2204.09627
Autor:
Sankar, Swetha, Melis, Carl, Klein, Beth L., Fulton, B. J., Zuckerman, B., Song, Inseok, Howard, Andrew W.
We present characterization of the planetary system architecture for V488 Per, the dustiest main sequence star known with a fractional infrared luminosity of ~16%. Far-infrared imaging photometry confirms the existence of an outer planetary system du
Externí odkaz:
http://arxiv.org/abs/2108.03700
Autor:
Vanderbosch, Zachary P., Rappaport, Saul, Guidry, Joseph A., Gary, Bruce L., Blouin, Simon, Kaye, Thomas G., Weinberger, Alycia J., Melis, Carl, Klein, Beth L., Zuckerman, B., Vanderburg, Andrew, Hermes, J. J., Hegedus, Ryan J., Burleigh, Matthew. R., Sefako, Ramotholo, Worters, Hannah L., Heintz, Tyler M.
We present follow-up photometry and spectroscopy of ZTF J0328$-$1219 strengthening its status as a white dwarf exhibiting transiting planetary debris. Using TESS and Zwicky Transient Facility photometry, along with follow-up high speed photometry fro
Externí odkaz:
http://arxiv.org/abs/2106.02659