activity
20102024
most citedDiscovery of Small-Scale Spiral Structures in the Disk of SAO 206462 (HD 135344B): Implications for the Physical State of the Disk from Spiral Density Wave Theory

399 citations · 7.3k across the 144 of their papers we have counts for

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10 papers · 1 filter

astro-ph.GA2022★ 11 cited

An Optical Spectrum of the Diffuse Galactic Light from BOSS and IRIS

Blake Chellew, Timothy D. Brandt, Brandon S. Hensley +2

We present a spectrum of the diffuse Galactic light (DGL) between 3700 and 10,000 A, obtained by correlating optical sky intensity with far-infrared dust emission. We use nearly 25…

astro-ph.GA2021★ 294 cited

The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition

Timothy D. Brandt

We present a cross-calibration of Hipparcos and Gaia EDR3 intended to identify astrometrically accelerating stars and to fit orbits to stars with faint, massive companions. The res…

astro-ph.GA2021★ 72 cited

Characterizing and correcting the proper motion bias of the bright Gaia EDR3 sources

Tristan Cantat-Gaudin, Timothy D. Brandt

In this paper we characterize magnitude-dependent systematics in the proper motions of the Gaia EDR3 catalog and provide a prescription for their removal. The reference frame of br…

astro-ph.GA2017★ 38 cited

Gamma-ray and X-ray emission from the Galactic Centre: hints on the nuclear star cluster formation history

Manuel Arca-Sedda, Bence Kocsis, Timothy Brandt

The Milky Way centre exhibits an intense flux in the gamma and X-ray bands, whose origin is partly ascribed to the possible presence of a large population of millisecond pulsars (M…

astro-ph.GA2017★ 47 cited

Ultraviolet to optical diffuse sky emission as seen by the Hubble Space Telescope Faint Object Spectrograph

K. Kawara, Y. Matsuoka, K. Sano +5

We present an analysis of the blank sky spectra observed with the Faint Object Spectrograph on board the Hubble Space Telescope. We study the diffuse sky emission from ultraviolet…

astro-ph.GA2016★ 337 cited

Constraints on MACHO Dark Matter from Compact Stellar Systems in Ultra-Faint Dwarf Galaxies

Timothy D. Brandt

I show that a recently discovered star cluster near the center of the ultra-faint dwarf galaxy Eridanus II provides strong constraints on massive compact halo objects (MACHOs) of >…

astro-ph.GA2016★ 37 cited

Is the Escape Velocity in Star Clusters Linked to Extended Star Formation Histories? Using NGC 7252: W3 as a Test Case

I. Cabrera-Ziri, N. Bastian, M. Hilker +9

The colour-magnitude diagrams of some intermediate-age clusters (1-2 Gyr) star clusters show unexpectedly broad main-sequence turnoffs, raising the possibility that these clusters…

astro-ph.GA2014★ 8 cited

Indications of M-dwarf Deficits in the Halo and Thick Disk of the Galaxy

Mihoko Konishi, Hiroshi Shibai, Takahiro Sumi +55

We compared the number of faint stars detected in deep survey fields with the current stellar distribution model of the Galaxy and found that the detected number in the H band is s…

astro-ph.GA2011★ 100 cited

The Spectrum of the Diffuse Galactic Light I: The Milky Way in Scattered Light

Timothy D. Brandt, Bruce T. Draine

We measure the optical spectrum of the Diffuse Galactic Light (DGL) -- the local Milky Way in reflection -- using 92,000 blank-sky spectra from the Sloan Digital Sky Survey (SDSS).…

astro-ph.GA2010★ 91 cited

The Ages of Type Ia Supernova Progenitors

Timothy D. Brandt, Rita Tojeiro, Éric Aubourg +3

Using light curves and host galaxy spectra of 101 Type Ia supernovae (SNe Ia) with redshift from the SDSS Supernova Survey (SDSS-SN), we derive the SN Ia rate as a…