A Caltech Library Service

Supplement: "Going the Distance: Mapping Host Galaxies of LIGO and Virgo Sources in Three Dimensions Using Local Cosmography and Targeted Follow-up" (2016, ApJL, 829, L15)

Singer, Leo P. and Chen, Hsin-Yu and Holz, Daniel E. and Farr, Will M. and Price, Larry R. and Raymond, Vivien and Cenko, S. Bradley and Gehrels, Neil and Cannizzo, John and Kasliwal, Mansi M. and Nissanke, Samaya and Coughlin, Michael and Farr, Ben and Urban, Alex L. and Vitale, Salvatore and Veitch, John and Graff, Philip and Berry, Christopher P. L. and Mohapatra, Satya and Mandel, Ilya (2016) Supplement: "Going the Distance: Mapping Host Galaxies of LIGO and Virgo Sources in Three Dimensions Using Local Cosmography and Targeted Follow-up" (2016, ApJL, 829, L15). Astrophysical Journal Supplement Series, 226 (1). Art. No. 10. ISSN 0067-0049. doi:10.3847/0067-0049/226/1/10.

[img] PDF - Published Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


This is a supplement to the Letter of Singer et al., in which we demonstrated a rapid algorithm for obtaining joint 3D estimates of sky location and luminosity distance from observations of binary neutron star mergers with Advanced LIGO and Virgo. We argued that combining the reconstructed volumes with positions and redshifts of possible host galaxies can provide large-aperture but small field of view instruments with a manageable list of targets to search for optical or infrared emission. In this Supplement, we document the new HEALPix-based file format for 3D localizations of gravitational-wave transients. We include Python sample code to show the reader how to perform simple manipulations of the 3D sky maps and extract ranked lists of likely host galaxies. Finally, we include mathematical details of the rapid volume reconstruction algorithm.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Singer, Leo P.0000-0001-9898-5597
Farr, Will M.0000-0003-1540-8562
Cenko, S. Bradley0000-0003-1673-970X
Kasliwal, Mansi M.0000-0002-5619-4938
Coughlin, Michael0000-0002-8262-2924
Mandel, Ilya0000-0002-6134-8946
Additional Information:© 2016 American Astronomical Society. Received 2016 May 13; accepted 2016 August 5; published 2016 September 21. We thank the Aspen Center for Physics and NSF grant #1066293 for hospitality during the conception, writing, and editing of this paper. We thank P Shawhan and F Tombesi for detailed feedback on the manuscript. The online data release is available at This is LIGO document P1500071-v7. Software: Astropy (Robitaille et al. 2013), GNU Scientific Library (Galassi & Gough 2009), HEALPix (Górski et al. 2005), Matplotlib (Hunter 2007), Yt (Turk et al. 2011).
Group:LIGO, Palomar Transient Factory
Funding AgencyGrant Number
Subject Keywords:catalogs; galaxies: distances and redshifts; gravitational waves; surveys
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO DocumentP1500071-v7
Issue or Number:1
Record Number:CaltechAUTHORS:20160929-082925782
Persistent URL:
Official Citation:Leo P. Singer et al 2016 ApJS 226 10
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70656
Deposited By: Ruth Sustaita
Deposited On:29 Sep 2016 18:33
Last Modified:11 Nov 2021 04:32

Repository Staff Only: item control page