activity
19982025
most citedLow Luminosity Companions to White Dwarfs

215 citations · 2.4k across the 36 of their papers we have counts for

collaborators

34 papers

astro-ph.HE2025

First mid-infrared detection and modeling of a flare from Sgr A*

Sebastiano D. von Fellenberg, Tamojeet Roychowdhury, Joseph M. Michail +24

The time-variable emission from the accretion flow of Sgr A*, the supermassive black hole at the Galactic Center, has long been examined in the radio-to-mm, near-infrared (NIR), an…

astro-ph.HE2024★ 6 cited

New Evidence for a Flux-independent Spectral Index of Sgr A* in the Near-infrared

Hadrien Paugnat, Tuan Do, Abhimat K. Gautam +11

In this work, we measure the spectral index of Sagittarius A* (Sgr A*) between the (1.6 m) and (2.2 m) broadband filters in the near-infrared (NIR), sampling o…

astro-ph.EP2017★ 4 cited

Simultaneous multicolour optical and near-IR transit photometry of GJ 1214b with SOFIA

D. Angerhausen, C. Dreyer, B. Placek +24

The benchmark exoplanet GJ 1214b is one of the best studied transiting planets in the transition zone between rocky Earth-sized planets and gas or ice giants. This class of super-E…

astro-ph.SR2015★ 19 cited

Observations of Type Ia Supernova 2014J with FLITECAM/SOFIA

William D. Vacca, Ryan T. Hamilton, Maureen Savage +9

We present medium resolution near-infrared (NIR) spectra, covering 1.1 to 3.4 microns, of the normal Type Ia supernova (SN Ia) SN 2014J in M82 obtained with the FLITECAM instrument…

astro-ph.HE2014★ 38 cited

Spitzer/IRAC Observations of the Variability of Sgr A* and the Object G2 at 4.5 microns

J. L. Hora, G. Witzel, M. L. N. Ashby +9

We present the first detection from the Spitzer Space Telescope of 4.5 micron variability from Sgr A*, the emitting source associated with the Milky Way's central black hole. The >…

astro-ph.GA2013★ 4 cited

The Keplerian orbit of G2

L. Meyer, A. M. Ghez, G. Witzel +8

We give an update of the observations and analysis of G2 - the gaseous red emission-line object that is on a very eccentric orbit around the Galaxy's central black hole and predict…