2024ApJ...961..171F

Query : 2024ApJ...961..171F

2024ApJ...961..171F - Astrophys. J., 961, 171 (2024/February-1)

The JWST Discovery of the Triply Imaged Type Ia “Supernova H0pe” and Observations of the Galaxy Cluster PLCK G165.7+67.0.

FRYE B.L., PASCALE M., PIEREL J., CHEN W., FOO N., LEIMBACH R., GARUDA N., COHEN S.H., KAMIENESKI P.S., WINDHORST R.A., KOEKEMOER A.M., KELLY P., SUMMERS J., ENGESSER M., LIU D., FURTAK L.J., POLLETTA M.D.C., HARRINGTON K.C., WILLNER S.P., DIEGO J.M., JANSEN R.A., COE D., CONSELICE C.J., DAI L., DOLE H., D'SILVA J.C.J., DRIVER S.P., GROGIN N.A., MARSHALL M.A., MEENA A.K., NONINO M., ORTIZ III R., PIRZKAL N., ROBOTHAM A., RYAN R.E.Jr, STROLGER L., TOMPKINS S., WILLMER C.N.A., YAN H., YUN M.S. and ZITRIN A.

Abstract (from CDS):

A Type Ia supernova (SN) at z = 1.78 was discovered in James Webb Space Telescope Near Infrared Camera imaging of the galaxy cluster PLCK G165.7+67.0 (G165; z = 0.35). The SN is situated 1.5-2 kpc from the host-galaxy nucleus and appears in three different locations as a result of gravitational lensing by G165. These data can yield a value for Hubble's constant using time delays from this multiply imaged SN Ia that we call “SN H0pe.” Over the cluster, we identified 21 image multiplicities, confirmed five of them using the Near-Infrared Spectrograph, and constructed a new lens model that gives a total mass within 600 kpc of (2.6 ± 0.3) × 1014M⊙. The photometry uncovered a galaxy overdensity coincident with the SN host galaxy. NIRSpec confirmed six member galaxies, four of which surround the SN host galaxy with relative velocity ≲900 km s–1 and projected physical extent ≲33 kpc. This compact galaxy group is dominated by the SN host galaxy, which has a stellar mass of (5.0 ± 0.1) × 1011M⊙. The group members have specific star formation rates of 2-260 Gyr–1 derived from the Hα-line fluxes corrected for stellar absorption, dust extinction, and slit losses. Another group centered on a strongly lensed dusty star-forming galaxy is at z = 2.24. The total (unobscured and obscured) SFR of this second galaxy group is estimated to be (≳ 100 M⊙ yr–1), which translates to a supernova rate of ∼1 SNe yr–1, suggesting that regular monitoring of this cluster may yield additional SNe.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Strong gravitational lensing - Rich galaxy clusters - High-redshift galaxy clusters - Galaxy cluster counts - Galaxy spectroscopy

Nomenclature: NAME SN H0pe N=1.

Status at CDS : Examining the need for a new acronym. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 10

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Number of rows : 10
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 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 296 0
2 AT 2016jka SN* 01 38 03.630 -21 55 50.40           SNIa 29 0
3 NAME SN H0pe SN* 11 27 15.6 +42 25 33           SNIa 32 0
4 [CNL2018] PLCK G165.7+67.0 lens ClG 11 27 16.60 +42 28 38.8           ~ 18 0
5 SDSS J112716.69+422838.1 BiC 11 27 16.6911274416 +42 28 38.185828716           ~ 5 0
6 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 546 0
7 NAME SN Refsdal SN* 11 49 36.010 +22 23 48.13           ~ 130 0
8 SN 2022qmx SN* 17 35 44.328 +04 49 56.86           SNIa 20 0
9 SN 2016geu SN* 21 04 15.86 -06 20 24.5           SNIa 78 0
10 SN 2022riv SN* 21 29 40.212 +00 05 24.18           ~ 12 0

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