2025ApJ...987....5A

Query : 2025ApJ...987....5A

2025ApJ...987....5A - Astrophys. J., 987, 5 (2025/July-1)

The NANOGrav 15 yr Data Set: Search for Gravitational-wave Memory.

AGAZIE G., ANUMARLAPUDI A., ARCHIBALD A.M., ARZOUMANIAN Z., BAIER J.G., BAKER P.T., BECSY B., BLECHA L., BRAZIER A., BROOK P.R., BURKE-SPOLAOR S., BURNETTE R., CASEY-CLYDE J.A., CHARISI M., CHATTERJEE S., COHEN T., CORDES J.M., CORNISH N.J., CRAWFORD F., CROMARTIE H.T., CROWTER K., DECESAR M.E., DEMOREST P.B., DENG H., DEY L., DOLCH T., FERRARA E.C., FIORE W., FONSECA E., FREEDMAN G.E., GARDINER E.C., GARVER-DANIELS N., GENTILE P.A., GERSBACH K.A., GLASER J., GOOD D.C., GULTEKIN K., HAZBOUN J.S., JENNINGS R.J., JOHNSON A.D., JONES M.L., KAPLAN D.L., KELLEY L.Z., KERR M., KEY J.S., LAAL N., LAM M.T., LAMB W.G., LARSEN B., LAZIO T.J.W., LEWANDOWSKA N., LIU T., LORIMER D.R., LUO J., LYNCH R.S., MA C.-P., MADISON D.R., McEWEN A., McKEE J.W., McLAUGHLIN M.A., McMANN N., MEYERS B.W., MEYERS P.M., MINGARELLI C.M.F., MITRIDATE A., NATARAJAN P., NG C., NICE D.J., OCKER S.K., OLUM K.D., PENNUCCI T.T., PERERA B.B.P., PETROV P., POL N.S., RADOVAN H.A., RANSOM S.M., RAY P.S., RUNNOE J.C., SAFFER A., SARDESAI S.C., SCHMIEDEKAMP A., SCHMIEDEKAMP C., SCHMITZ K., SHAPIRO-ALBERT B.J., SIEMENS X., SIMON J., SIWEK M.S., SOSA FISCELLA S.V., STAIRS I.H., STINEBRING D.R., STOVALL K., SUN J.P., SUSOBHANAN A., SWIGGUM J.K., TAYLOR J., TAYLOR S.R., TURNER J.E., UNAL C., VALLISNERI M., VAN HAASTEREN R., VIGELAND S.J., WAHL H.M., WITT C.A., WRIGHT D. and YOUNG O.

Abstract (from CDS):

We present the results of a search for nonlinear gravitational-wave (GW) memory in the NANOGrav 15 yr data set. We find no significant evidence for memory signals in the data set, with a maximum Bayes factor of 3.1 in favor of a model including memory. We therefore place upper limits on the strain of potential GW memory events as a function of sky location and observing epoch. We find upper limits that are not always more constraining than previous NANOGrav results. We show that it is likely due to the increase in common red noise between the 12.5 and 15 yr NANOGrav data sets.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Gravitational waves

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
2 PSR J0614-3329 Psr 06 14 10.3479 -33 29 54.116           ~ 134 1
3 PSR J0931-1902 Psr 09 31 19.116246 -19 02 55.05445           ~ 60 0
4 PSR J1012-4235 Psr 10 12 12.938801 -42 35 53.40253           ~ 36 0
5 PSR J1455-3300 Psr 14 55 47.976991 -33 30 46.40280           ~ 165 1
6 PSR J1600-3053 Psr 16 00 51.902514 -30 53 49.45343           ~ 218 0
7 PSR J2124-3358 Psr 21 24 43.834930 -33 58 45.49195           ~ 337 1

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