Search Publications
Type-Ia Supernova Rates to Redshift 2.4 from CLASH: The Cluster Lensing And Supernova Survey with Hubble
Cenko, S. B.; Molino, A.; Leibundgut, B. +38 more
We present the supernova (SN) sample and Type-Ia SN (SN Ia) rates from the Cluster Lensing And Supernova survey with Hubble (CLASH). Using the Advanced Camera for Surveys and the Wide Field Camera 3 on the Hubble Space Telescope (HST), we have imaged 25 galaxy-cluster fields and parallel fields of non-cluster galaxies. We report a sample of 27 SNe…
Connecting Speeds, Directions and Arrival Times of 22 Coronal Mass Ejections from the Sun to 1 AU
Luhmann, J. G.; Möstl, C.; Farrugia, C. J. +15 more
Forecasting the in situ properties of coronal mass ejections (CMEs) from remote images is expected to strongly enhance predictions of space weather and is of general interest for studying the interaction of CMEs with planetary environments. We study the feasibility of using a single heliospheric imager (HI) instrument, imaging the solar wind densi…
Star Formation Relations and CO Spectral Line Energy Distributions across the J-ladder and Redshift
Veilleux, S.; Armus, L.; Greve, T. R. +19 more
We present FIR [50-300 µm]-CO luminosity relations (i.e., log L_FIR = α log L\prime _CO + β) for the full CO rotational ladder from J = 1-0 up to J = 13-12 for a sample of 62 local (z <= 0.1) (Ultra) Luminous Infrared Galaxies (LIRGs; L IR[8-1000 µm] > 1011 L ⊙) using data from Herschel…
The COS/UVES Absorption Survey of the Magellanic Stream. III. Ionization, Total Mass, and Inflow Rate onto the Milky Way
Richter, Philipp; Charlton, Jane C.; Kumari, Nimisha +14 more
Dynamic interactions between the two Magellanic Clouds have flung large quantities of gas into the halo of the Milky Way. The result is a spectacular arrangement of gaseous structures, including the Magellanic Stream, the Magellanic Bridge, and the Leading Arm (collectively referred to as the Magellanic System). In this third paper of a series stu…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submillimeter Excess Emission
Okumura, K.; Gordon, Karl D.; Bot, Caroline +33 more
The dust properties in the Large and Small Magellanic clouds (LMC/SMC) are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 µm. Three simple models of dust emission were fit to the observations: a single temperature blackbody modified by a power-law emissivity (SMBB), a single temperature blackbo…
16 yr of RXTE Monitoring of Five Anomalous X-Ray Pulsars
Kaspi, Victoria M.; Dib, Rim
We present a summary of the long-term evolution of various properties of the five non-transient anomalous X-ray pulsars (AXPs) 1E 1841-045, RXS J170849.0-400910, 1E 2259+586, 4U 0142+61, and 1E 1048.1-5937, regularly monitored with RXTE from 1996 to 2012. We focus on three properties of these sources: the evolution of the timing, pulsed flux, and …
The Role of Stellar Feedback in the Dynamics of H II Regions
Ramirez-Ruiz, Enrico; Prochaska, J. Xavier; Bolatto, Alberto D. +3 more
Stellar feedback is often cited as the biggest uncertainty in galaxy formation models today. This uncertainty stems from a dearth of observational constraints as well as the great dynamic range between the small scales (lsim1 pc) where the feedback originates and the large scales of galaxies (gsim1 kpc) that are shaped by this feedback. To bridge …
redMaPPer II: X-Ray and SZ Performance Benchmarks for the SDSS Catalog
Rykoff, E. S.; Rozo, E.
We evaluate the performance of the Sloan Digital Sky Survey (SDSS) DR8 redMaPPer photometric cluster catalog by comparing it to overlapping X-ray- and Sunyaev-Zeldovich (SZ)-selected catalogs from the literature. We confirm that the redMaPPer photometric redshifts are nearly unbiased (langΔzrang <= 0.005), have low scatter (σ z ≈ 0.…
Are Dusty Galaxies Blue? Insights on UV Attenuation from Dust-selected Galaxies
Le Floc'h, E.; Ivison, R. J.; Sanders, D. B. +12 more
Galaxies' rest-frame ultraviolet (UV) properties are often used to directly infer the degree to which dust obscuration affects the measurement of star formation rates (SFRs). While much recent work has focused on calibrating dust attenuation in galaxies selected at rest-frame ultraviolet wavelengths, locally and at high-z, here we investigate atte…
Discriminating the Progenitor Type of Supernova Remnants with Iron K-shell Emission
Safi-Harb, Samar; Maeda, Yoshitomo; Petre, Robert +11 more
Supernova remnants (SNRs) retain crucial information about both their parent explosion and circumstellar material left behind by their progenitor. However, the complexity of the interaction between supernova ejecta and ambient medium often blurs this information, and it is not uncommon for the basic progenitor type (Ia or core-collapse) of well-st…