Search Publications
Deep ugrizY imaging and DEEP2/3 spectroscopy: a photometric redshift testbed for LSST and public release of data from the DEEP3 Galaxy Redshift Survey
Trump, Jonathan R.; Conselice, Christopher J.; Nandra, Kirpal +19 more
We present catalogues of calibrated photometry and spectroscopic redshifts in the Extended Groth Strip, intended for studies of photometric redshifts (photo-z's). The data includes ugriz photometry from Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) and Y-band photometry from the Subaru Suprime camera, as well as spectroscopic redshifts fro…
Calibrating Star Formation Rate Prescriptions at Different Scales (10 pc-1 kpc) in M31
Schinnerer, Eva; Blanc, Guillermo A.; Kreckel, Kathryn +9 more
We calibrate commonly used star formation rate (SFR) prescriptions using observations in five kiloparsec-sized fields in the nearby galaxy Andromeda (M31) at 10 pc spatial resolution. Our observations at different scales enable us to resolve the star-forming regions and to distinguish them from non-star-forming components. We use extinction-correc…
The MASSIVE Survey XIII. Spatially Resolved Stellar Kinematics in the Central 1 kpc of 20 Massive Elliptical Galaxies with the GMOS-North Integral Field Spectrograph
Ma, Chung-Pei; Greene, Jenny E.; Blakeslee, John P. +5 more
We use observations from the GEMINI-N/GMOS integral field spectrograph (IFS) to obtain spatially resolved stellar kinematics of the central ∼1 kpc of 20 early-type galaxies (ETGs) with stellar masses greater than 1011.7 M ⊙ in the MASSIVE survey. Together with observations from the wide-field Mitchell IFS at McDonald Observat…
Revealing dust-obscured star formation in CLJ1449+0856, a cluster at z = 2
Papageorgiou, A.; Smith, M. W. L.; Eales, S. A. +2 more
We present SCUBA-2 450 and 850 µm data of the mature redshift 2 cluster CLJ1449. We combine this with archival Herschel data to explore the star-forming properties of CLJ1449. Using high-resolution Atacama Large Millimetre Array and Jansky Very Large Array data we identify potentially confused galaxies, and use the Bayesian inference tool XI…
Discovery of a Lyα-emitting Dark Cloud within the z ∼ 2.8 SMM J02399-0136 System
Ivison, R. J.; Prochaska, J. Xavier; Cai, Zheng +9 more
We present Keck/Keck Cosmic Web Imager (KCWI) integral field spectrograph observations of the complex system surrounding SMM J02399-0136 (a lensed z = 2.8 sub-mm galaxy), including an associated Lyα nebula, a dust-obscured, broad-absorption-line quasar, and neighboring galaxies. At a 3σ surface brightness contour of 1.6 × 10-17 erg s
Dynamic Processes of the Moreton Wave on 2014 March 29
Shibata, Kazunari; Ichimoto, Kiyoshi; Asai, Ayumi +4 more
On 2014 March 29, an intense solar flare classified as X1.0 occurred in active region 12017. Several associated phenomena accompanied this event, among them a fast-filament eruption, large-scale propagating disturbances in the corona and the chromosphere including a Moreton wave, and a coronal mass ejection. This flare was successfully detected in…
Herschel spectroscopy of massive young stellar objects in the Magellanic Clouds
Lebouteiller, V.; Filipović, M. D.; Cormier, D. +11 more
We present Herschel Space Observatory Photodetector Array Camera and Spectrometer (PACS) and Spectral and Photometric Imaging Receiver Fourier Transform Spectrometer (SPIRE FTS) spectroscopy of a sample of 20 massive Young Stellar Objects (YSOs) in the Large and Small Magellanic Clouds (LMC and SMC). We analyse the brightest far-infrared (far-IR) …
Asteroseismology of the Multiplanet System K2-93
Vanderburg, Andrew; Chaplin, William J.; Davies, Guy R. +14 more
We revisit the analysis of the bright multiplanet system K2-93, discovered with data taken by the K2 mission. This system contains five identified planets ranging in size from sub-Neptune to Jupiter size. The K2 data available at the discovery of the system only showed single transits for the three outer planets, which allowed weak constraints to …
Properties of the singing comet waves in the 67P/Churyumov-Gerasimenko plasma environment as observed by the Rosetta mission
Eriksson, A.; Karlsson, T.; Volwerk, M. +9 more
Using in situ measurements from different instruments on board the Rosetta spacecraft, we investigate the properties of the newly discovered low-frequency oscillations, known as singing comet waves, that sometimes dominate the close plasma environment of comet 67P/Churyumov-Gerasimenko. These waves are thought to be generated by a modified ion-Wei…
Spectroscopic Constraints on the Cross-sectional Asymmetry and Expansion of Active Region Loops
Young, P. R.; Klimchuk, J. A.; DeForest, C. E. +1 more
We explore the constraints that can be placed on the dimensions of coronal loops out of the plane of the sky by utilizing spectroscopic observations from the Hinode/EUV Imaging Spectrometer (EIS). The usual assumption is that loop cross sections are circular. Changes in intensity are assumed to be the result of changing density, filling factor, an…