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Inflationary features and shifts in cosmological parameters from Planck 2015 data
Dvorkin, Cora; Obied, Georges; Miranda, Vinicius +2 more
We explore the relationship between features in the Planck 2015 temperature and polarization data, shifts in the cosmological parameters, and features from inflation. Residuals in the temperature data from the best-fit power-law Λ CDM model at low multipole ℓ≲40 are mainly responsible for the high H0 and low σ8Ωm
ALMA deep field in SSA22: Blindly detected CO emitters and [C II] emitter candidates
Smail, Ian; Fujimoto, Seiji; Inoue, Akio K. +21 more
We report the identification of four millimeter line-emitting galaxies with the Atacama Large Milli/submillimeter Array (ALMA) in SSA22 Field (ADF22). We analyze the ALMA 1.1-mm survey data, with an effective survey area of 5 arcmin2, frequency ranges of 253.1-256.8 and 269.1-272.8 GHz, angular resolution of 0{^''.}7 and rms …
Crowded Field Galaxy Photometry: Precision Colors in the CLASH Clusters
Koekemoer, Anton M.; Donahue, Megan; Voit, G. Mark +8 more
We present a new method for photometering objects in galaxy clusters. We introduce a mode-filtering technique for removing spatially variable backgrounds, improving both detection and photometric accuracy (roughly halving the scatter in the red sequence compared to previous catalogs of the same clusters). This method is based on robustly determini…
Chromospherically Active Stars in the RAVE Survey. II. Young Dwarfs in the Solar Neighborhood
Gilmore, G.; Freeman, K. C.; Munari, U. +19 more
A large sample of over 38,000 chromospherically active candidate solar-like stars and cooler dwarfs from the RAVE survey is addressed in this paper. An improved activity identification with respect to the previous study was introduced to build a catalog of field stars in the solar neighborhood with an excess emission flux in the calcium infrared t…
First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310
Maraschi, L.; Covino, S.; Antonelli, L. A. +161 more
Context. The extragalactic very-high-energy gamma-ray sky is rich in blazars. These are jetted active galactic nuclei that are viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a larger angle are so far known to emit above 100 GeV. Multi-wavelength studies of such objects up to the highest energies provide new insig…
SPRINTS: A Framework for Solar-Driven Event Forecasting and Research
Falconer, D. A.; Engell, A. J.; Schuh, M. +2 more
Capabilities to predict onset and time profiles of solar-driven events, including solar X-ray flares; solar energetic particles (SEP); coronal mass ejections; and high-speed streams, are critical in mitigating their potential impacts. We introduce the Space Radiation Intelligence System (SPRINTS). This NASA-invested technology integrates preerupti…
Black hole spin of Cygnus X-1 determined from the softest state ever observed
Done, Chris; Fukazawa, Yasushi; Takahashi, Hiromitsu +3 more
We show the softest ever spectrum from Cyg X-1, detected in 2013 with Suzaku. This has the weakest high-energy Compton tail ever seen from this object, so should give the cleanest view of the underlying disk spectrum, and hence the best determination of black hole spin from disk continuum fitting. Using the standard model of a disk with simple non…
Probing the Cold Dust Emission in the AB Aur Disk: A Dust Trap in a Decaying Vortex?
Cernicharo, José; Fuente, Asunción; Baruteau, Clément +6 more
One serious challenge for planet formation is the rapid inward drift of pebble-sized dust particles in protoplanetary disks. Dust trapping at local maxima in the disk gas pressure has received much theoretical attention but still lacks observational support. The cold dust emission in the AB Aur disk forms an asymmetric ring at a radius of about 12…
Structure formation in a colliding flow: The Herschel view of the Draco nebula
Miville-Deschênes, M. -A.; Boulanger, F.; Abergel, A. +9 more
Context. The Draco nebula is a high Galactic latitude interstellar cloud observed at velocities corresponding to the intermediate velocity cloud regime. This nebula shows unusually strong CO emission and remarkably high-contrast small-scale structures for such a diffuse high Galactic latitude cloud. The 21 cm emission of the Draco nebula reveals t…
Discovery of a glitch in the accretion-powered pulsar SXP 1062
Serim, M. M.; Şahiner, Ş.; ćerri-Serim, D. +2 more
We present timing analysis of the accretion-powered pulsar SXP 1062, based on the observations of Swift, XMM-Newton and Chandra satellites covering a time span of about 2 yr. We obtain a phase coherent timing solution that shows that SXP 1062 has been steadily spinning down with a rate -4.29(7) × 10-14 Hz s-1 leading to a sur…