Search Publications
The Young L Dwarf 2MASS J11193254-1137466 Is a Planetary-mass Binary
Magnier, Eugene A.; Dupuy, Trent J.; Liu, Michael C. +1 more
We have discovered that the extremely red, low-gravity L7 dwarf 2MASS J11193254-1137466 is a 0.″14 (3.6 au) binary using Keck laser guide star adaptive optics imaging. 2MASS J11193254-1137466 has previously been identified as a likely member of the TW Hydrae Association (TWA). Using our updated photometric distance and proper motion, a kinematic a…
G10/COSMOS: 38 band (far-UV to far-IR) panchromatic photometry using LAMBDAR
Robotham, Aaron S. G.; Davies, L. J. M.; Driver, S. P. +3 more
We present a consistent total flux catalogue for a ∼1 deg2 subset of the Cosmic Evolution Survey (COSMOS) region (RA ∈ [149.55°, 150.65°], Dec. ∈ [1.80°, 2.73°]) with near-complete coverage in 38 bands from the far-ultraviolet to the far-infrared. We produce aperture matched photometry for 128 304 objects with I < 24.5 in a manner th…
ALMA 1.3 mm Map of the HD 95086 System
MacGregor, Meredith A.; Hughes, A. Meredith; Matthews, Brenda C. +11 more
Planets and minor bodies such as asteroids, Kuiper-Belt objects, and comets are integral components of a planetary system. Interactions among them leave clues about the formation process of a planetary system. The signature of such interactions is most prominent through observations of its debris disk at millimeter wavelengths where emission is do…
Measurements of the electrostatic potential of Rosetta at comet 67P
Nilsson, H.; Eriksson, A. I.; Johansson, F. L. +3 more
We present and compare measurements of the spacecraft potential (Vs/c) of the Rosetta spacecraft throughout its stay in the inner coma of comet 67P/Churyumov-Gerasimenko, by the Rosetta Plasma Consortium-LAngmuir Probe (RPC-LAP) and Ion Composition Analyzer (RPC-ICA) instruments. Vs/c has mainly been negative, driven by the h…
On the timing properties of SAX J1808.4-3658 during its 2015 outburst
Sanna, A.; Tailo, M.; Papitto, A. +7 more
We present a timing analysis of the 2015 outburst of the accreting millisecond X-ray pulsar SAX J1808.4-3658, using non-simultaneous XMM-Newton and NuSTAR observations. We estimate the pulsar spin frequency and update the system orbital solution. Combining the average spin frequency from the previous observed, we confirm the long-term spin-down at…
Interstellar filaments and star formation
André, Philippe
Recent studies of the nearest star-forming clouds of the Galaxy at submillimeter wavelengths with the Herschel Space Observatory have provided us with unprecedented images of the initial conditions and early phases of the star formation process. The Herschel images reveal an intricate network of filamentary structure in every interstellar cloud. T…
Near-infrared Emission Spectrum of WASP-103b Using Hubble Space Telescope/Wide Field Camera 3
Knutson, Heather; Stassun, Keivan G.; Wright, Jason T. +8 more
We present here our observations and analysis of the dayside emission spectrum of the hot Jupiter WASP-103b. We observed WASP-103b during secondary eclipse using two visits of the Hubble Space Telescope with the G141 grism on Wide Field Camera 3 in spatial scan mode. We generated secondary eclipse light curves of the planet in both blended white-l…
37 GHz observations of narrow-line Seyfert 1 galaxies
Harrison, D. L.; Lähteenmäki, A.; López-Caniego, M. +12 more
Observations performed at Metsähovi Radio Observatory at 37 GHz are presented for a sample of 78 radio-loud and radio-quiet narrow-line Seyfert 1 (NLS1) galaxies, together with additional lower and higher frequency radio data from RATAN-600, Owens Valley Radio Observatory, and the Planck satellite. Most of the data have been gathered between Febru…
Simultaneous X-ray and radio observations of the radio-mode-switching pulsar PSR B1822-09
Kuiper, L.; Hermsen, W.; Hessels, J. W. T. +7 more
We report on simultaneous X-ray and radio observations of the radio-mode-switching pulsar PSR B1822-09 with ESA's XMM-Newton and the Westerbork Synthesis Radio Telescope, Giant Metrewave Radio Telescope and Lovell radio telescopes. PSR B1822-09 switches between a radio-bright and radio-quiet mode, and we discovered a relationship between the durat…
The AGN-Star Formation Connection: Future Prospects with JWST
Barro, Guillermo; Santini, Paola; Grogin, Norman A. +13 more
The bulk of the stellar growth over cosmic time is dominated by IR-luminous galaxies at cosmic noon (z=1{--}2), many of which harbor a hidden active galactic nucleus (AGN). We use state-of-the-art infrared color diagnostics, combining Spitzer and Herschel observations, to separate dust-obscured AGNs from dusty star-forming galaxies (SFGs) in the C…