2024ApJ...966L..37H

Query : 2024ApJ...966L..37H

2024ApJ...966L..37H - Astrophys. J., 966, L37 (2024/May-2)

Possibility of Secondary i- and s-processes Following r-process in the Collapsar Jet.

HE Z., KAJINO T., KUSAKABE M., ZHOU S.-G., KOURA H., CHIBA S., LI H. and LIN Y.

Abstract (from CDS):

The slow and intermediate neutron-capture processes, s- and i-processes, are believed to occur in asymptotic giant branch stars to provide half of the heavy atomic nuclei with A ≥ 90. We suggest a possibility that certain types of outflows found in the collapsar, which is a supernova generated by a rapidly rotating massive star undergoing core collapse, leaving behind a black hole and emitting relativistic jets, can provide conditions that are viable for s- and i-processes as secondary processes following the rapid neutron-capture process, r-process. We propose that the pronounced odd-even effect in the mass abundance pattern near rare earth elements in metal-deficient halo stars could be an observational hint for the s- and i-processes in the collapsar.

Journal keyword(s): Explosive nucleosynthesis - R-process - S-process - CEMP stars - Solar abundances

Simbad objects: 1

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Number of rows : 1

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	BPS CS 31062-0050	Pe*	00 30 31.0646803224	-12 05 10.877225064		13.7	13.05	12.681	12.309	CEMP-r/s	70	0

Query : 2024ApJ...966L..37H

Basic data :

BPS CS 31062-0050 -- Chemically Peculiar Star

Pe* (2002ApJ), * (BPS,Gaia), PM* (2018yCat), NIR (2MASS)

00 30 31.0646803224 -12 05 10.877225064 (Optical) [ 0.0581 0.0426 90 ] A 2020yCat.1350....0G

00 27 58.9798717818 -12 21 43.871873813 [ 0.0581 0.0426 90 ]

103.8501492828951 -74.1779609886315 [ 0.0581 0.0426 90 ]

48.776 -24.194 [0.073 0.052 90] A 2020yCat.1350....0G

V(km/s) 7.75 [~] / z(~) 0.000026 [~] / cz 7.75 [~] D 2002PASJ...54..933A

1.0137 [0.0695] A 2020yCat.1350....0G

CEMP-r/s C 2016ApJ...833...20Y

B 13.7 [~] D 2005AJ....130.2804R

V 13.05 [~] D 2005AJ....130.2804R

R 12.681 [0.004] D 2007ApJS..168..128B

G 12.869952 [0.002776] C 2020yCat.1350....0G

I 12.309 [0.004] D 2007ApJS..168..128B

J 11.765 [0.022] C 2003yCat.2246....0C

H 11.464 [0.025] C 2003yCat.2246....0C

K 11.405 [0.023] C 2003yCat.2246....0C

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`2MASS J00303106-1205108`	`HE 0027-1221`	`Gaia DR3 2423720246374021632`
`BPS CS 31062-0050`	`Gaia DR2 2423720246374021632`

References (70 between 1850 and 2026) (Total 70)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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2MASS J00303106-1205108 Gaia DR2 2423720246374021632 Gaia DR3 2423720246374021632

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