2020ApJ...889...57H

Query : 2020ApJ...889...57H

2020ApJ...889...57H - Astrophys. J., 889, 57-57 (2020/January-3)

Effects of 150-1000 eV electron impacts on pure carbon monoxide ices using the Interstellar Energetic-Process System (IEPS).

HUANG C.-H., CIARAVELLA A., CECCHI-PESTELLINI C., JIMENEZ-ESCOBAR A., HSIAO L.-C., HUANG C.-C., CHEN P.-C., SIE N.-E. and CHEN Y.-J.

Abstract (from CDS):

Pure CO ice has been irradiated with electrons of energy in the range 150-1000 eV with the Interstellar Energetic-Process System. The main products of irradiation are carbon chains C_n (n = 3, 5, 6, 8, 9, 10, 11, 12), suboxides, C_nO (n = 2, 3, 4, 5, 6, 7), and C_nO₂ (n = 1, 3, 4, 5, 7) species. CO₂ is by far the most abundant reaction product in all the experiments. The destruction cross section of CO peaks at about 250 eV, decreases with the energy of the electrons and is more than one order of magnitude higher than for gas-phase CO ionization. The production cross section of carbon dioxide has been also derived and is characterized by the competition between chemistry and desorption. Desorption of CO and of new species during the radiolysis follows the electron distribution in the ice. Low-energy electrons having short penetration depths induce significant desorption. Finally, as the ice thickness approaches the electron penetration depth the abundance of the products starts to saturate. Implications on the atmospheric photochemistry of cold planets hosting surface CO ices are also discussed.

Journal keyword(s): Astrochemistry - Protoplanetary disks - Laboratory astrophysics

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	V* V2254 Ori	Or*	05 35 14.11296	-05 22 22.7316						B	320	2

Query : 2020ApJ...889...57H

Basic data :

V* V2254 Ori -- Orion Variable

Y*? (2002ApJ,[OGB2021]), * ([HC2000],[SCE2006]), IR (MLLA,[RLK73]), Or* (2017ARep), Y*O (2021ApJ), V* (V*), X (COUP), mm ([FW2011]), Rad (GBS), NIR (2MASS)

05 35 14.11296 -05 22 22.7316 (Near-IR) [ 80 80 17 ] C 2003yCat.2246....0C

05 32 46.63802 -05 24 16.2209 [ 80 80 17 ]

208.99026522 -19.38519049 [ 80 80 17 ]

B D ~

0.0018 0.0003 7 (mm) E 2011ApJ...742...64F

J 14.82 [0.07] C 2002ApJ...573..366M

H 9.21 [0.04] C 2002ApJ...573..366M

K 5.052 [0.016] C 2003yCat.2246....0C

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`2MASS J05351411-0522227`	`NAME BN Object`	*`V V2254 Ori`**	`[RLK73] IRc 1`
`COUP 599b`	`NAME Orion-BN`	`[FW2011] J053514.106-052222.528`	`[SCE2006] 12`
`COUP J053514.1-052222`	`NAME Becklin-Neugebauer Object`	`[FW2011] C11`
`GBS-VLA J053514.12-052222.7`	`NAME Becklin-Neugebauer Source`	`[HC2000] 705`
`MLLA 642`	`TIC 427394569`	`[OGB2021] 39`

References (320 between 1850 and 2026) (Total 320)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : V* V2254 Ori

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2MASS J05351411-0522227 MLLA 642 V* V2254 Ori

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