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GCN Circular 20800

Subject
LIGO/Virgo G275404: Nearby Galaxies in the Localization Volume
Date
2017-03-03T01:11:14Z (7 years ago)
From
Mansi M. Kasliwal at Caltech <mansi@astro.caltech.edu>
David O. Cook (Caltech), Angela Van Sistine (UW Milwaukee), Leo Singer
(NASA/GSFC), and M. M. Kasliwal (Caltech)

report on behalf of the iPTF (intermediate Palomar Transient Factory) and
GROWTH (Global Relay of Observatories Watching Transients Happen)
collaborations

We spatially cross-matched the LIGO/Virgo G275697 trigger (90% containment
volume; LVC GCN 20763) with our Census of the Local Universe (CLU; Cook et
al. in prep) galaxy catalog and found 7361 galaxies. This catalog is a
compilation of galaxies with existing redshifts from many sources (e.g.,
NED, SDSS, etc) and new galaxies from a 3PI four-filter narrow-band survey
to look for redshifted Halpha emission out to 200 Mpc with the Palomar
Oschin 48-inch telescope. Currently, the narrow-band survey is only
calibrated inside the footprint of SDSS. Of the 7361 galaxies in the error
volume, 6032 come from a compilation of known galaxies and 1329 are new,
emission-line CLU galaxy candidates.

We list here the top 20 galaxies sorted by star formation rate (SFR) and by
stellar mass (Mstar) for galaxies whose location on the sky and distance
falls in the 90% volume reported by the BAYESTAR probability sky map
(Singer et al. 2016), where the 90% credible volume measures 3.3e6 Mpc^3.
The sorted SFR list contains 2 new CLU galaxies with no previous
spectroscopic redshifts, and the sorted mass list contains 1 new CLU
galaxy. CLU J20203032+0734271 is an interacting triplet of galaxies, and
CLU J08550651+1944566 may be an interacting pair.


List of sorted SFRs:
          name             ra      dec    distMpc Log(sfr_fuv, Msun/yr)
Log(mstar, Msun)
----------------------- -------- -------- ------- ---------------------
----------------
              II Zw 096 314.3496  17.1273  148.35   2.486
10.78
2MASX J10315733-1846333 157.9887 -18.7761  172.43   1.922
11.14
  CLU J21083429+1804593 317.1430  18.0830  171.40   1.838
10.56
               MRK 0704 139.6084  16.3053  125.21   1.807
11.45
               MRK 1239 148.0796  -1.6121   85.34   1.756
11.63
         ESO 567- G 025 152.9059 -21.2538  128.15   1.733
11.04
2MASX J20104645+0107108 302.6935   1.1197  110.63   1.639
10.32
               NGC 2761 136.8779  18.4341  119.85   1.575
10.85
         MCG -05-26-006 161.8030 -28.9211  146.22   1.573
10.79
              UGC 11497 298.9081   2.1819  108.47   1.512
10.82
              UGC 05025 141.5137  12.7343  124.85   1.507
11.04
2MASX J12313717-4758019 187.9048 -47.9672  119.47   1.473
10.96
           CGCG 447-017 310.7770  21.6341  198.10   1.466
11.07
         ESO 267- G 029 183.4678 -47.2737   77.79   1.452
10.51
  CLU J08550651+1944566 133.7770  19.7489   52.82   1.447
8.56
2MASX J19512506+0432574 297.8542   4.5493  121.09   1.444
10.19
           TOLOLO 00013 167.3347 -30.3636  177.31   1.429
10.68
2MASX J11143157-2935412 168.6316 -29.5948  129.19   1.428
10.31
2MASX J20353916+0816162 308.9133   8.2711  114.50   1.403
10.67
                 VV 637 150.8623  -1.5467  197.44   1.390
10.69


List of sorted stellar masses:
          name             ra      dec    distMpc Log(sfr_fuv, Msun/yr)
Log(mstar, Msun)
----------------------- -------- -------- ------- ---------------------
----------------
               MRK 1239 148.0796  -1.6121   85.34   1.756
11.63
               MRK 0704 139.6084  16.3053  125.21   1.807
11.45
2MASX J10315733-1846333 157.9887 -18.7761  172.43   1.922
11.14
           CGCG 447-017 310.7770  21.6341  198.10   1.466
11.07
         MCG -03-26-030 152.8289 -17.2044  129.25   0.015
11.05
              UGC 05025 141.5137  12.7343  124.85   1.507
11.04
         ESO 567- G 025 152.9059 -21.2538  128.15   1.733
11.04
               NGC 2720 134.7836  11.1492  127.07  -0.271
11.04
              UGC 05025 141.5140  12.7344  123.28   1.496
11.03
2MASX J10260948-2034149 156.5394 -20.5708  175.36  -0.036
11.03
           CGCG 447-008 307.9770  18.4189  192.53  -0.068
11.03
2MASX J20235470+1341480 305.9779  13.6967  191.06   0.575
11.02
               NGC 2819 139.5387  16.1981  129.13  -0.277
11.00
         ESO 438- G 023 170.2215 -29.4031  127.39   0.430
10.99
2MASX J09493236-1406471 147.3848 -14.1132  179.73   0.209
10.99
2MASX J12313717-4758019 187.9048 -47.9672  119.47   1.473
10.96
              UGC 11602 309.4789  10.6313  110.68   0.355
10.95
  CLU J20203032+0734271 305.1260   7.5744  183.17   0.986
10.90
              UGC 05182 145.6040   4.2832  122.75  -0.222
10.90
2MASX J10370833-2242401 159.2847 -22.7112  158.88   0.763
10.89

The SFRs are derived from GALEX all sky kron FUV magnitudes via the
prescription of Murphy et al. (2011) and have been corrected for internal
dust extinction using a combination of GALEX FUV and 22um ALLWISE fluxes
(Hao et al. 2011). The quoted stellar masses are derived from 3.4um ALLWISE
fluxes and a mass-to-light ratio of 0.5 (McGaugh & Schombert et al. 2015).
AGN contributions to the SFRs and stellar masses are not corrected for.
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