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Mini-survey of the northern sky to Dec < +30

Capak, P. and Sconlic, D. and Cuillandre, J-C. and Castander, F. and Bolton, A. and Bowler, R. and Chang, C. and Dey, A. and Eifler, T. and Eisenstein, D. and Grillmair, C. and Gris, P. and Hernitschek, N. and Hook, I. and Hirata, C. and Kuijken, B. Jain K. and Lochner, M. and Newman, J. and Oesch, P. and Olsen, K. and Rhodes, J. and Robertson, B. and Rubin, D. and Scarlata, C. and Silverman, J. and Wachter, S. and Wang, Y. (2019) Mini-survey of the northern sky to Dec < +30. . (Unpublished)

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We propose an extension of the LSST survey to cover the northern sky to DEC < +30 (accessible at airmass <1.8). This survey will increase the LSST sky coverage by ~9,600 square degrees from 18,900 to 28,500 square degrees (a 50% increase) but use only 0.6-2.5% of the time depending on the synergies with other surveys. This increased area addresses a wide range of science cases that enhance all of the primary LSST science goals by significant amounts. The science enabled includes: increasing the area of the sky accessible for follow-up of multi-messenger transients including gravitational waves, mapping the milky way halo and halo dwarfs including discovery of RR Lyrae stars in the outer galactic halo, discovery of z>7 quasars in combination Euclid, enabling a second generation DESI and other spectroscopic surveys, and enhancing all areas of science by improving synergies with Euclid, WFIRST, and unique northern survey facilities. This white paper is the result of the Tri-Agency Working Group (TAG) appointed to develop synergies between missions and presents a unified plan for northern coverage. The range of time estimates reflects synergies with other surveys. If the modified DESC WFD survey, the ecliptic plane mini survey, and the north galactic spur mini survey are executed this plan would only need 0.6% of the LSST time, however if none of these are included the overall request is 2.5% of the 10 year survey life. In other words, the majority of these observations are already suggested as part of these other surveys and the intent of this white paper is to propose a unified baseline plan to carry out a broad range of objectives to facilitate a combination of multiple science objectives. A companion white paper gives Euclid specific science goals, and we support the white papers for southern extensions of the LSST survey.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Capak, P.0000-0003-3578-6843
Castander, F.0000-0001-7316-4573
Dey, A.0000-0002-4928-4003
Eifler, T.0000-0002-1894-3301
Grillmair, C.0000-0003-4072-169X
Hernitschek, N.0000-0003-1681-0430
Hook, I.0000-0002-2960-978X
Hirata, C.0000-0002-2951-4932
Lochner, M.0000-0003-2221-8281
Oesch, P.0000-0001-5851-6649
Olsen, K.0000-0002-7134-8296
Rhodes, J.0000-0002-4485-8549
Robertson, B.0000-0002-4271-0364
Scarlata, C.0000-0002-9136-8876
Silverman, J.0000-0002-0000-6977
Record Number:CaltechAUTHORS:20190813-091659412
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97855
Deposited By: Tony Diaz
Deposited On:13 Aug 2019 18:30
Last Modified:09 Mar 2020 13:19

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