2018MNRAS.475L..30R


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.20CET02:18:34

2018MNRAS.475L..30R - Mon. Not. R. Astron. Soc., 475, L30-L34 (2018)

Phosphorus-bearing molecules in the Galactic Center.

RIVILLA V.M., JIMENEZ-SERRA I., ZENG S., MARTIN S., MARTIN-PINTADO J., ARMIJOS-ABENDANO J., VITI S., ALADRO R., RIQUELME D., REQUENA-TORRES M., QUENARD D., FONTANI F. and BELTRAN M.T.

Abstract (from CDS):

Phosphorus (P) is one of the essential elements for life due to its central role in biochemical processes. Recent searches have shown that P-bearing molecules (in particular PN and PO) are present in star-forming regions, although their formation routes remain poorly understood. In this letter, we report observations of PN and PO towards seven molecular clouds located in the Galactic Center, which are characterized by different types of chemistry. PN is detected in five out of seven sources, whose chemistry is thought to be shock-dominated. The two sources with PN non-detections correspond to clouds exposed to intense UV/X-rays/cosmic ray (CR) radiation. PO is detected only towards the cloud G+0.693-0.03, with a PO/PN abundance ratio of ∼1.5. We conclude that P-bearing molecules likely form in shocked gas as a result of dust grain sputtering, while are destroyed by intense UV/X-ray/CR radiation.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): ISM: abundances - ISM: clouds - ISM: molecules - Galaxy: Centre

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 663 0
2 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 702 0
3 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3346 3
4 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11251 0
5 CO 000.02-00.02 MoC 17 45.7 -28 56           ~ 25 0
6 GCM -0.02 -0.07 MoC 17 45 50.4 -28 59 06           ~ 138 0
7 GCM +0.24 +0.01 MoC 17 46 10 -28 43.7           ~ 4 0
8 NAME Sgr B2 (North) Rad 17 47 20.2 -28 22 21           ~ 504 1
9 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 1879 1
10 NAME Sgr B2 Main Rad 17 47 20.5 -28 23 06           ~ 327 1
11 GCM +0.693 -0.027 MoC 17 47 21.9 -28 21 27           ~ 14 0
12 W 51 SNR 19 23 50 +14 06.0           ~ 1130 1
13 [DE95] LDN 1157 B1 out 20 39 11 +68 01.3           ~ 170 0

    Equat.    Gal    SGal    Ecl

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2020.02.20-02:18:34

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