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The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck
Ellwanger, Ulrich; Hugonie, Cyril
We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with bounds from WMAP/Planck, and direct detection cross sections compatible with constraints from LUX. We consider…
The Density and Mass of Unshocked Ejecta in Cassiopeia A through Low Frequency Radio Absorption
Rudnick, Lawrence; Perley, R. A.; DeLaney, Tracey +1 more
Characterizing the ejecta in young supernova remnants is a requisite step toward a better understanding of stellar evolution. In Cassiopeia A the density and total mass remaining in the unshocked ejecta are important parameters for modeling its explosion and subsequent evolution. Low frequency (<100 MHz) radio observations of sufficient angular…
Spectral Energy Distribution Fitting of HETDEX Pilot Survey Lyα Emitters in COSMOS and GOODS-N
Finkelstein, Steven L.; Schneider, Donald P.; Bridge, Joanna +15 more
We use broadband photometry extending from the rest-frame UV to the near-IR to fit the individual spectral energy distributions of 63 bright (L(Lyα) > 1043 erg s-1) Lyα emitting galaxies (LAEs) in the redshift range 1.9 < z < 3.6. We find that these LAEs are quite heterogeneous, with stellar masses that span over thr…
Optical - near-infrared catalog for the AKARI north ecliptic pole Deep field
Goto, Tomotsugu; Ohyama, Youichi; Pearson, Chris +9 more
Aims: We present an 8-band (u∗, g', r', i', z', Y, J, Ks) optical to near-infrared deep photometric catalog based on the observations made with MegaCam and WIRCam at the CFHT, and compute photometric redshifts, zp in the north ecliptic pole (NEP) region. AKARI infrared satellite carried out a deep survey in th…
Radio Imaging of a Type IVM Radio Burst on the 14th of August 2010
Krucker, S.; Bain, H. M.; Saint-Hilaire, P. +1 more
Propagating coronal mass ejections (CMEs) are often accompanied by burst signatures in radio spectrogram data. We present Nançay Radioheliograph observations of a moving source of broadband radio emission, commonly referred to as a type IV radio burst (type IVM), which occurred in association with a CME on the 14th of August 2010. The event was we…
Small-scale chromospheric jets above a sunspot light bridge
Ichimoto, Kiyoshi; Louis, Rohan E.; Beck, Christian
Context. The chromosphere above sunspot umbrae and penumbrae shows several different types of fast dynamic events such as running penumbral waves, umbral flashes, and penumbral microjets.
Aims: The aim of this paper is to identify the physical driver responsible for the dynamic and small-scale chromospheric jets above a sunspot light bridge. …
A connection between accretion state and Fe K absorption in an accreting neutron star: black hole-like soft-state winds?
Ponti, Gabriele; Muñoz-Darias, Teodoro; Fender, Robert P.
High-resolution X-ray spectra of accreting stellar-mass black holes reveal the presence of accretion disc winds, traced by high-ionization Fe K lines. These winds appear to have an equatorial geometry and to be observed only during disc-dominated states in which the radio jet is absent. Accreting neutron star systems also show equatorial high-ioni…
XMM-Newton observations reveal the disappearance of the wind in 4U 1630-47
Díaz Trigo, M.; Guainazzi, M.; Miller-Jones, J. C. A. +1 more
We report on XMM-Newton observations of the black hole X-ray binary 4U 1630-47 during its 2012-2013 outburst. The first five observations monitor the source as its luminosity increases across the high-soft state of accretion. In the sixth observation the source has made a transition to an "anomalous" state, characterised by a significant contribut…
A sub-kpc-scale binary active galactic nucleus with double narrow-line regions
Komossa, S.; Husemann, Bernd; Park, Daeseong +3 more
We present the kinematic properties of a type-2 Quasi stellar object (QSO), SDSS J132323.33-015941.9 at z ∼ 0.35, based on the analysis of Very Large Telescope integral field spectroscopy and Hubble Space Telescope (HST) imaging, which suggest that the target is a binary active galactic nucleus (AGN) with double narrow-line regions. The QSO featur…
The Mass of the Central Black Hole in the Nearby Seyfert Galaxy NGC 5273
Bentz, Misty C.; Jones, Jeremy; Parks, J. Robert +9 more
We present the results of a reverberation-mapping program targeting NGC 5273, a nearby early-type galaxy with a broad-lined active galactic nucleus (AGN). Over the course of the monitoring program, NGC 5273 showed strong variability that allowed us to measure time delays in the responses of the broad optical recombination lines to changes in the c…