Search Publications
Multi-Wavelength Study of a Complete IRAC 3.6 µm Selected Galaxy Sample: A Fair Census of Red and Blue Populations at Redshifts 0.4-1.2
Barmby, P.; Wang, T.; Rigopoulou, D. +14 more
We present a multi-wavelength study of a 3.6 µm selected galaxy sample in the Extended Groth Strip (EGS). The sample is complete for galaxies with stellar mass >109.5 M ⊙ and redshift 0.4 < z < 1.2. In this redshift range, the Infrared Array Camera 3.6 µm band measures the rest-frame near-infrared band, p…
Bright 22 µm Excess Candidates from the Wise All-sky Catalog and the Hipparcos Main Catalog
Yang, Ming; Wu, Hong; Li, Shuo +5 more
In this paper, we present a catalog that includes 141 bright candidates (<=10.27 mag, V band) showing an excess of infrared (IR) at 22 µm. Of these 141 candidates, 38 stars are known IR-excess stars or disks, 23 stars are double or multiple stars, and 4 are Be stars while the remaining more than 70 stars are identified as 22 µm exce…
Empirical reconstruction of storm time steady magnetospheric convection events
Anderson, B. J.; McPherron, R. L.; Sitnov, M. I. +4 more
We investigate the storm-scale morphology of the magnetospheric magnetic field as well as underlying distributions of electric currents, equatorial plasma pressure, and entropy for four steady magnetospheric convection (SMC) events that occurred during the May 2000 and October 2011 magnetic storms. The analysis is made using the empirical geomagne…
Wide-field Multiband Photometry of Globular Cluster Systems in the Fornax Galaxy Cluster
Kim, Hak-Sub; Chung, Chul; Sohn, Sangmo Tony +5 more
We present wide-field multiband photometry of globular cluster (GC) systems in NGC 1399, NGC 1404, and NGC 1387 located in the central region of the Fornax galaxy cluster. Observation was carried out through U, B, V, and I bands, which marks one of the widest and deepest U-band studies on extragalactic GC systems. The present U-band photometry ena…
Bright Ray-like Features in the Aftermath of Coronal Mass Ejections: White Light versus Ultraviolet Spectra
Webb, D. F.; Raymond, J. C.; Ciaravella, A. +1 more
Current sheets (CSs) are important signatures of magnetic reconnection in the eruption of confined solar magnetic structures. Models of coronal mass ejections (CMEs) involve formation of a CS connecting the ejected flux rope with the post-eruption magnetic loops. CSs have been identified in white light (WL) images of CMEs as narrow rays trailing t…
H2O vapor excitation in dusty AGB envelopes. A PACS view of OH 127.8+0.0
Blommaert, J. A. D. L.; de Koter, A.; Decin, L. +6 more
Context. AGB stars lose a large percentage of their mass in a dust-driven wind. This creates a circumstellar envelope, which can be studied through thermal dust emission and molecular emission lines. In the case of high mass-loss rates, this study is complicated by the high optical depths and the intricate coupling between gas and dust radiative t…
Probing the Radial Temperature Structure of Protoplanetary Disks with Herschel/HIFI
Fedele, D.; Henning, Th.; van Dishoeck, E. F. +4 more
Herschel/HIFI spectroscopic observations of CO J = 10-9, CO J = 16-15 and [C II] toward HD 100546 are presented. The objective is to resolve the velocity profile of the lines to address the emitting region of the transitions and directly probe the distribution of warm gas in the disk. The spectra reveal double-peaked CO line profiles centered on t…
Secondary eclipses in the CoRoT light curves. A homogeneous search based on Bayesian model selection
Deeg, H. J.; Parviainen, H.; Belmonte, J. A.
Aims: We aim to identify and characterize secondary eclipses in the original light curves of all published CoRoT planets using uniform detection and evaluation critetia.
Methods: Our analysis is based on a Bayesian model selection between two competing models: one with and one without an eclipse signal. The search is carried out by mappi…
A Comparison of Solar Energetic Particle Event Timescales with Properties of Associated Coronal Mass Ejections
Kahler, S. W.
The dependence of solar energetic proton (SEP) event peak intensities Ip on properties of associated coronal mass ejections (CMEs) has been extensively examined, but the dependence of SEP event timescales is not well known. We define three timescales of 20 MeV SEP events and ask how they are related to speeds v CME or widths W of their …
The Herschel Fornax Cluster Survey - I. The bright galaxy sample
Ciesla, L.; Bianchi, S.; Fritz, J. +18 more
We present Herschel Space Telescope observations of the nearby Fornax cluster at 100, 160, 250, 350 and 500 µm with a spatial resolution of 7-36 arcsec (10 arcsec ≈ 1 kpc at dFornax = 17.9 Mpc). We define a sample of 11 bright galaxies, selected at 500 µm, that can be directly compared with our past work on the Virgo cluster…