559 citations · 1.7k across the 12 of their papers we have counts for
12 papers
Broadband Searches for Extraterrestrial Technological Intelligence: a New Strategy To Find Nearby Alien Civilizations
B. Zuckerman
One of the most interesting questions that astronomy can hope to answer is: are we alone in our Milky Way galaxy? A detection of an electromagnetic (EM) signal generated by an extr…
High Velocity Circumstellar Gas Orbiting a White Dwarf Star
B. Zuckerman, Érika Le Bourdais, Beth L. Klein +6
Numerous white dwarf stars are known to be orbited by disks of gas and dust. To date, broad, about 300 km s-1 wide, gaseous circumstellar absorption features have only been reporte…
A Machine-Learning Compositional Study of Exoplanetary Material Accreted Onto Five Helium-Atmosphere White Dwarfs with
Mariona Badenas-Agusti, Siyi Xu, Andrew Vanderburg +8
We present the first application of the Machine Learning (ML) pipeline to determine the physical parameters and photospheric composition of five metal-polluted H…
Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager
B. Macintosh, J. R. Graham, T. Barman +85
Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric composition and luminosity, which is influenced by their formation mechani…
Evidence for an Anhydrous Carbonaceous Extrasolar Minor Planet
M. Jura, P. Dufour, S. Xu +4
Using Keck/HIRES, we report abundances of 11 different elements heavier than helium in the spectrum of Ton 345, a white dwarf that has accreted one of its own minor planets. This p…
The GALEX Nearby Young-Star Survey
David R. Rodriguez, B. Zuckerman, Joel H. Kastner +3
We describe a method that exploits data from the GALEX ultraviolet and WISE and 2MASS infrared source catalogs, combined with proper motions and empirical pre-main sequence isochro…
Fomalhaut b: Independent Analysis of the Hubble Space Telescope Public Archive Data
Raphael Galicher, Christian Marois, Ben Zuckerman +1
The nature and even the existence of a putative planet-mass companion ("Fomalhaut b") to Fomalhaut has been debated since 2008. In the present paper we reanalyze the multi-epoch AC…
Ancient planetary systems are orbiting a large fraction of white dwarf stars
B. Zuckerman, C. Melis, B. Klein +2
Infrared studies have revealed debris likely related to planet formation in orbit around ~30% of youthful, intermediate mass, main sequence stars. We present evidence, based on atm…
Chemical Abundances in the Externally Polluted White Dwarf GD 40: Evidence of a Rocky Extrasolar Minor Planet
B. Klein, M. Jura, D. Koester +2
We present Keck/HIRES data with model atmosphere analysis of the helium-dominated polluted white dwarf GD 40, in which we measure atmospheric abundances relative to helium of 9 ele…
A Substantial Dust Disk Surrounding an Actively Accreting First-Ascent Giant Star
C. Melis, B. Zuckerman, I. Song +2
We report identification of the first unambiguous example of what appears to be a new class of first-ascent giant stars that are actively accreting gas and dust and that are surrou…
Infrared Signatures of Disrupted Minor Planets at White Dwarfs
J. Farihi, M. Jura, B. Zuckerman
Spitzer Space Observatory IRAC and MIPS photometric observations are presented for 20 white dwarfs with T < 20,000 K and metal-contaminated photospheres. A warm circumstellar disk…
Extent of Excess Far Infrared Emission around Luminosity Class III Stars
Sungsoo S. Kim, Ben Zuckerman, Murray Silverstone
With the Infrared Space Observatory, we conducted 3x3-pixel imaging photometry of twelve luminosity class III stars, which were previously presumed to have dust particles around th…