Search Results - "Campbell, Randall D."
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A population of dust-enshrouded objects orbiting the Galactic black hole
Published in Nature (London) (16-01-2020)“…The central 0.1 parsecs of the Milky Way host a supermassive black hole identified with the position of the radio and infrared source Sagittarius A* (refs. 1 ,…”
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Journal Article -
2
The Swansong of the Galactic Center Source X7: An Extreme Example of Tidal Evolution near the Supermassive Black Hole
Published in The Astrophysical journal (01-02-2023)“…We present two decades of new high-angular-resolution near-infrared data from the W. M. Keck Observatory that reveal extreme evolution in X7, an elongated dust…”
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Journal Article -
3
Parent Volatiles in Comet 9P/Tempel 1: Before and After Impact
Published in Science (American Association for the Advancement of Science) (14-10-2005)“…We quantified eight parent volatiles (H₂O, C₂H₆, HCN, CO, CH₃OH, H₂CO, C₂H₂, and CH₄) in the Jupiter-family comet Tempel 1 using high-dispersion infrared…”
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Journal Article -
4
A potential progenitor for the Type Ic supernova 2017ein
Published in Monthly notices of the Royal Astronomical Society (01-10-2018)Get full text
Journal Article -
5
Upper Limit on Brackett-γ Emission from the Immediate Accretion Flow onto the Galactic Black Hole
Published in The Astrophysical journal (01-04-2021)“…We present the first observational constraint on the Brackett- γ (Br γ ) recombination line emission associated with the supermassive black hole at the center…”
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Journal Article -
6
A low density of 0.8 g cm(-3) for the Trojan binary asteroid 617 Patroclus
Published in Nature (London) (02-02-2006)“…The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 stable Lagrange points of the…”
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Journal Article -
7
A low density of 0.8 g cm -3 for the Trojan binary asteroid 617 Patroclus
Published in Nature (02-02-2006)“…The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 stable Lagrange points of the…”
Get full text
Journal Article -
8
Characterization of the Si:As Blocked Impurity Band (BIB) Detector in Keck's Long Wavelength Spectrometer (LWS)
Published in Experimental astronomy (01-08-2002)“…Keck's Long Wavelength Spectrometer (LWS), is the facilityinstrument used for imaging and spectroscopy in the wavelengthrange of 3-28 km at the Keck…”
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Journal Article -
9
Upper Limit on Brackett-gamma Emission from the Immediate Accretion Flow onto the Galactic Black Hole
Published 25-02-2021“…We present the first observational constraint on the Br-gamma recombination line emission associated with the supermassive black hole at the center of our…”
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Journal Article -
10
The Swansong of the Galactic Center Source X7: An Extreme Example of Tidal Evolution near the Supermassive Black Hole
Published 16-01-2023“…We present two decades of new high-angular-resolution near-infrared data from the W. M. Keck Observatory that reveal extreme evolution in X7, an elongated dust…”
Get full text
Journal Article -
11
A low density of 0.8 g cm super(-3) for the Trojan binary asteroid 617 Patroclus
Published in Nature (02-02-2006)“…The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 stable Lagrange points of the…”
Get full text
Journal Article -
12
A low density of 0.8 g/cc for the Trojan binary asteroid 617 Patroclus
Published in Nature (London) (01-02-2006)“…The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 Lagrange points of the Jupiter-Sun…”
Get full text
Journal Article -
13
Keck Observations of Solar System Objects: Perspectives for Extremely Large Telescopes
Published in Earth, moon, and planets (01-09-2009)“…From differential tracking techniques, required for appulse observations of KBOs with Laser Guide Star Adaptive Optics (LGSAO), to developing methods for…”
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14
Parent volatiles in comet 9P/Tempel 1 : Before and after impact : Deep impact
Published in Science (American Association for the Advancement of Science) (2005)Get full text
Journal Article -
15
A population of dust-enshrouded objects orbiting the Galactic black hole
Published 23-01-2020“…Nature volume 577, pages337-340(2020) The central 0.1 parsecs of the Milky Way host a supermassive black hole identified with the position of the radio and…”
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Journal Article -
16
A Potential Progenitor for the Type Ic Supernova 2017ein
Published 09-08-2018“…We report the first detection of a credible progenitor system for a Type Ic supernova (SN Ic), SN 2017ein. We present spectra and photometry of the SN, finding…”
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Journal Article -
17
Characterization of the Si: As Blocked Impurity Band (BIB) Detector in Keck’s Long Wavelength Spectrometer (LWS)
Published in Scientific Detectors for Astronomy (2004)“…Keck’s Long Wavelength Spectrometer (LWS), is the facility instrument used for imaging and spectroscopy in the wavelength range of 3–28 μm at the Keck…”
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Book Chapter -
18
A low density of 0.8 g/cc for the Trojan binary asteroid 617 Patroclus
Published 01-02-2006“…Nature 439:565-567,2006 The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 Lagrange…”
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Journal Article