Artículo
The southern molecular environment of SNR G18.8+0.3
Paron, Sergio Ariel
; Celis Peña, Mariela Fernanda
; Ortega, Martin Eduardo
; Petriella, Alberto
; Rubio, M.; Dubner, Gloria Mabel
; Giacani, Elsa Beatriz
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Fecha de publicación:
08/2015
Editorial:
Edp Sciences
Revista:
Astronomy And Astrophysics
ISSN:
0004-6361
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In a previous paper we have investigated the molecular environment towardsthe eastern border of the SNR G18.8+0.3. Continuing with the study of thesurroundings of this SNR, in this work we focus on its southern border, whichin the radio continuum emission shows a very peculiar morphology with acorrugated corner and a very flattened southern flank. We observed two regionstowards the south of SNR G18.8+0.3 using the Atacama Submillimeter TelescopeExperiment (ASTE) in the 12CO J=3-2. One of these regions was also surveyed in13CO and C18O J=3-2. The angular and spectral resolution of these observationswere 22", and 0.11 km/s. We compared the CO emission to 20 cm radio continuummaps obtain as part of the Multi-Array Galactic Plane Imaging Survey (MAGPIS)and 870 um dust emission extracted from the APEX Telescope Large Area Survey ofthe Galaxy. We discovered a molecular feature with a good morphologicalcorrespondence with the SNR´s southernmost corner. In particular, there areindentations in the radio continuum map that are complemented by protrusions inthe molecular CO image, strongly suggesting that the SNR shock is interactingwith a molecular cloud. Towards this region we found that the 12CO peak is notcorrelated with the observed 13CO peaks, which are likely related to a nearby Hii region. Regarding the most flattened border of SNR G18.8+0.3, where aninteraction of the SNR with dense material was previously suggested, our 12COJ=3-2 map show no obvious indication that this is occurring.
Palabras clave:
Ism: Clouds
,
Ism: Supernova Remnants
,
Ism: Hii Regions
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Identificadores
Colecciones
Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Paron, Sergio Ariel; Celis Peña, Mariela Fernanda; Ortega, Martin Eduardo; Petriella, Alberto; Rubio, M.; et al.; The southern molecular environment of SNR G18.8+0.3; Edp Sciences; Astronomy And Astrophysics; 580; 8-2015; 51-54
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