Hintze Centre for Astrophysical Surveys

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A Tale of Two Transients: GW 170104 and GRB 170105A

The Astrophysical Journal American Astronomical Society 845:2 (2017) 152

Authors:

V Bhalerao, MM Kasliwal, D Bhattacharya, A Corsi, E Aarthy, SM Adams, N Blagorodnova, T Cantwell, SB Cenko, R Fender, D Frail, R Itoh, J Jencson, N Kawai, AKH Kong, T Kupfer, A Kutyrev, J Mao, S Mate, NPS Mithun, K Mooley, DA Perley, YC Perrott, RM Quimby, AR Rao, LP Singer, V Sharma, DJ Titterington, E Troja, SV Vadawale, A Vibhute, H Vedantham, S Veilleux
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Calibrating photometric redshifts with intensity mapping observations

Physical Review D American Physical Society 96:4 (2017) 043515

Authors:

David Alonso, Pedro G Ferreira, Matthew Jarvis, K Moodley

Abstract:

Imaging surveys of galaxies will have a high number density and angular resolution yet a poor redshift precision. Intensity maps of neutral hydrogen will have accurate redshift resolution yet will not resolve individual sources. Using this complementarity, we show how the clustering redshifts approach proposed for spectroscopic surveys can also be used in combination with intensity mapping observations to calibrate the redshift distribution of galaxies in an imaging survey and, as a result, reduce uncertainties in photometric-redshift measurements. We show how the intensity mapping surveys to be carried out with the MeerKAT, HIRAX and SKA instruments can improve photometric-redshift uncertainties to well below the requirements of DES and LSST. The effectiveness of this method as a function of instrumental parameters, foreground subtraction and other potential systematic errors is discussed in detail.
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Spatially resolved MaNGA observations of the host galaxy of superluminous supernova 2017egm

(2017)

Authors:

Ting-Wan Chen, Patricia Schady, Lin Xiao, JJ Eldridge, Tassilo Schweyer, Chien-Hsiu Lee, Po-Chieh Yu, Stephen J Smartt, Cosimo Inserra
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Hydrogen-Poor Superluminous Supernovae from the Pan-STARRS1 Medium Deep Survey

(2017)

Authors:

R Lunnan, R Chornock, E Berger, DO Jones, A Rest, I Czekala, J Dittmann, MR Drout, RJ Foley, W Fong, RP Kirshner, T Laskar, CN Leibler, R Margutti, D Milisavljevic, G Narayan, Y-C Pan, AG Riess, KC Roth, NE Sanders, D Scolnic, SJ Smartt, KW Smith, KC Chambers, PW Draper, H Flewelling, ME Huber, N Kaiser, RP Kudritzki, EA Magnier, N Metcalfe, RJ Wainscoat, C Waters, M Willman
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Large sSynoptic Survey Telescope Galaxies Science Roadmap

(2017)

Authors:

BE Robertson, M Banerji, MC Cooper, Roger Davies, SP Driver, Ferguson, HC Ferguson, E Gawiser, S Kaviraj, JH Knapen, Chris Lintott, J Lotz, JA Newman, DJ Norman, N Padilla, SJ Schmidt, GP Smith, JA Tyson, Aprajita Verma, I Zehavi, L Armus, C Avestruz, LF Barrientos, Rebecca AA Bowler, MN Bremer, CJ Conselice, J Davies, R Demarco, ME Dickinson, G Galaz, A Grazian, BW Holwerda, Matthew Jarvis, V Kasliwal, I Lacerna, J Loveday, P Marshall, E Merlin, NR Napolitano, TH Puzia, A Robotham, S Salim, M Sereno, GF Snyder, JP Stott, PB Tissera, N Werner, P Yoachim, KD Borne

Abstract:

The Large Synoptic Survey Telescope (LSST) will enable revolutionary studies of galaxies, dark matter, and black holes over cosmic time. The LSST Galaxies Science Collaboration has identified a host of preparatory research tasks required to leverage fully the LSST dataset for extragalactic science beyond the study of dark energy. This Galaxies Science Roadmap provides a brief introduction to critical extragalactic science to be conducted ahead of LSST operations, and a detailed list of preparatory science tasks including the motivation, activities, and deliverables associated with each. The Galaxies Science Roadmap will serve as a guiding document for researchers interested in conducting extragalactic science in anticipation of the forthcoming LSST era.
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