Search Publications
The Near-infrared Tip of the Red Giant Branch. I. A Calibration in the Isolated Dwarf Galaxy IC 1613
Madore, Barry F.; Freedman, Wendy L.; Beaton, Rachael L. +8 more
Based on observations from the FourStar near-infrared camera on the 6.5 m Baade-Magellan telescope at Las Campanas, Chile, we present calibrations of the JHK luminosities of stars defining the tip of the red giant branch (TRGB) in the halo of the Local Group dwarf galaxy IC 1613. We employ metallicity-independent (rectified) T-band magnitudes—cons…
The NuSTAR Extragalactic Surveys: X-Ray Spectroscopic Analysis of the Bright Hard-band Selected Sample
Harrison, F. A.; Stern, D.; Alexander, D. M. +23 more
We discuss the spectral analysis of a sample of 63 active galactic nuclei (AGN) detected above a limiting flux of S(8{--}24 {keV})=7× {10}-14 {erg} {{{s}}}-1 {{cm}}-2 in the multi-tiered NuSTAR extragalactic survey program. The sources span a redshift range z=0{--}2.1 (median < z> =0.58). The spectral analysi…
Planets, candidates, and binaries from the CoRoT/Exoplanet programme. The CoRoT transit catalogue
Mazeh, T.; Guterman, P.; Aigrain, S. +31 more
The CoRoT space mission observed 163 665 stars over 26 stellar fields in the faint star channel. The exoplanet teams detected a total of 4123 transit-like features in the 177 454 light curves. We present the complete re-analysis of all these detections carried out with the same softwares so that to ensure their homogeneous analysis. Although the v…
The spectral energy distribution of powerful starburst galaxies - I. Modelling the radio continuum
Callingham, J. R.; Filipović, M. D.; Seymour, N. +24 more
We have acquired radio-continuum data between 70 MHz and 48 GHz for a sample of 19 southern starburst galaxies at moderate redshifts (0.067 < z < 0.227) with the aim of separating synchrotron and free-free emission components. Using a Bayesian framework, we find the radio continuum is rarely characterized well by a single power law, instead …
No Surviving Companion in Kepler's Supernova
Damiani, Francesco; Ruiz-Lapuente, Pilar; Galbany, Lluís +5 more
We have surveyed Kepler’s supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 L ⊙ in all stars within 20% of the radius of the remnant. We use FLAMES at the VLT-UT2 telescope to obtain high-resolution spectra of the stellar candidates selected from Hubble Space Telescope (HST) images. The resu…
MUSE crowded field 3D spectroscopy in NGC 300. I. First results from central fields
Bacon, Roland; Weilbacher, Peter M.; Monreal-Ibero, Ana +9 more
Aims: As a new approach to the study of resolved stellar populations in nearby galaxies, our goal is to demonstrate with a pilot study in NGC 300 that integral field spectroscopy with high spatial resolution and excellent seeing conditions reaches an unprecedented depth in severely crowded fields.
Methods: Observations by MUSE with seven…
The KMOS3D Survey: Rotating Compact Star-forming Galaxies and the Decomposition of Integrated Line Widths
Lutz, D.; Wuyts, S.; Förster Schreiber, N. M. +23 more
Using integral field spectroscopy, we investigate the kinematic properties of 35 massive centrally dense and compact star-forming galaxies (SFGs; {log}{\overline{M}}* [{M}⊙ ]=11.1, {log}({{{Σ }}}1{kpc}[{M}⊙ {kpc}}-2])> 9.5, {log}({M}* /{r}e1.5[{M}⊙
Exploring cosmic origins with CORE: Gravitational lensing of the CMB
Boulanger, F.; Ashdown, M.; Banday, A. J. +111 more
Lensing of the cosmic microwave background (CMB) is now a well-developed probe of the clustering of the large-scale mass distribution over a broad range of redshifts. By exploiting the non-Gaussian imprints of lensing in the polarization of the CMB, the CORE mission will allow production of a clean map of the lensing deflections over nearly the fu…
SPIDERMAN: an open-source code to model phase curves and secondary eclipses
Kreidberg, Laura; Louden, Tom
We present SPIDERMAN (Secondary eclipse and Phase curve Integrator for 2D tempERature MAppiNg), a fast code for calculating exoplanet phase curves and secondary eclipses with arbitrary surface brightness distributions in two dimensions. Using a geometrical algorithm, the code solves exactly the area of sections of the disc of the planet that are o…
The HST PanCET Program: Hints of Na I and Evidence of a Cloudy Atmosphere for the Inflated Hot Jupiter WASP-52b
Nikolov, Nikolay; Sing, David K.; Stevenson, Kevin B. +16 more
We present an optical to near-infrared transmission spectrum of the inflated hot Jupiter WASP-52b using three transit observations from the Space Telescope Imaging Spectrograph mounted on the Hubble Space Telescope, combined with Spitzer/Infrared Array Camera photometry at 3.6 and 4.5 µm. Since WASP-52 is a moderately active (log(L x