Dust deficiency in the interacting galaxy NGC 3077

Jairo Armijos-Abendaño; Ericson López; Mario Llerena; Franklin Aldás; Crispin Logan

doi:10.3390/galaxies5030053

Dust deficiency in the interacting galaxy NGC 3077

Jairo Armijos-Abendaño^*, Ericson López, Mario Llerena, Franklin Aldás, Crispin Logan

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

Using 70 μm observations taken with the PACS instrument of the Herschel space telescope, the dust content of the nearby and interacting spiral galaxy NGC 3077 has been compared with the dust content of the isolated galaxies such as NGC 2841, NGC 3184 and NGC 3351. The dust content has allowed us to derive dust-to-gas ratios for the four spiral galaxies of our sample. We find that NGC 2841, NGC 3184 and NGC 3351 have dust masses of 6.5-9.1 times; 10⁷ M⊙, which are a factor of ~10 higher than the value found for NGC 3077. This result shows that NGC 3077 is a dust deficient galaxy, as was expected, because this galaxy is affected by tidal interactions with its neighboring galaxies M81 and M82. NGC 3077 reveals a dust-to-gas ratio of 17.5%, much higher than the average ratio of 1.8% of the isolated galaxies, evidencing that NGC 3077 is also deficient in H₂ + HI gas. Therefore, it seems that, in this galaxy, gas has been stripped more efficiently than dust.

Original language	English
Article number	53
Journal	Galaxies
Volume	5
Issue number	3
DOIs	https://doi.org/10.3390/galaxies5030053
Publication status	Published - 15 Sept 2017

Keywords

Dust mass
Dust-to-gas ratio
Spiral galaxies

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@article{cdb78ba89da043fc9aa17ab3ba84f07c,

title = "Dust deficiency in the interacting galaxy NGC 3077",

abstract = "Using 70 μm observations taken with the PACS instrument of the Herschel space telescope, the dust content of the nearby and interacting spiral galaxy NGC 3077 has been compared with the dust content of the isolated galaxies such as NGC 2841, NGC 3184 and NGC 3351. The dust content has allowed us to derive dust-to-gas ratios for the four spiral galaxies of our sample. We find that NGC 2841, NGC 3184 and NGC 3351 have dust masses of 6.5-9.1 times; 107 M⊙, which are a factor of ~10 higher than the value found for NGC 3077. This result shows that NGC 3077 is a dust deficient galaxy, as was expected, because this galaxy is affected by tidal interactions with its neighboring galaxies M81 and M82. NGC 3077 reveals a dust-to-gas ratio of 17.5%, much higher than the average ratio of 1.8% of the isolated galaxies, evidencing that NGC 3077 is also deficient in H2 + HI gas. Therefore, it seems that, in this galaxy, gas has been stripped more efficiently than dust.",

keywords = "Dust mass, Dust-to-gas ratio, Spiral galaxies",

author = "Jairo Armijos-Abenda{\~n}o and Ericson L{\'o}pez and Mario Llerena and Franklin Ald{\'a}s and Crispin Logan",

year = "2017",

month = sep,

day = "15",

doi = "10.3390/galaxies5030053",

language = "English",

volume = "5",

journal = "Galaxies",

issn = "2075-4434",

publisher = "MDPI",

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TY - JOUR

T1 - Dust deficiency in the interacting galaxy NGC 3077

AU - Armijos-Abendaño, Jairo

AU - López, Ericson

AU - Llerena, Mario

AU - Aldás, Franklin

AU - Logan, Crispin

PY - 2017/9/15

Y1 - 2017/9/15

N2 - Using 70 μm observations taken with the PACS instrument of the Herschel space telescope, the dust content of the nearby and interacting spiral galaxy NGC 3077 has been compared with the dust content of the isolated galaxies such as NGC 2841, NGC 3184 and NGC 3351. The dust content has allowed us to derive dust-to-gas ratios for the four spiral galaxies of our sample. We find that NGC 2841, NGC 3184 and NGC 3351 have dust masses of 6.5-9.1 times; 107 M⊙, which are a factor of ~10 higher than the value found for NGC 3077. This result shows that NGC 3077 is a dust deficient galaxy, as was expected, because this galaxy is affected by tidal interactions with its neighboring galaxies M81 and M82. NGC 3077 reveals a dust-to-gas ratio of 17.5%, much higher than the average ratio of 1.8% of the isolated galaxies, evidencing that NGC 3077 is also deficient in H2 + HI gas. Therefore, it seems that, in this galaxy, gas has been stripped more efficiently than dust.

AB - Using 70 μm observations taken with the PACS instrument of the Herschel space telescope, the dust content of the nearby and interacting spiral galaxy NGC 3077 has been compared with the dust content of the isolated galaxies such as NGC 2841, NGC 3184 and NGC 3351. The dust content has allowed us to derive dust-to-gas ratios for the four spiral galaxies of our sample. We find that NGC 2841, NGC 3184 and NGC 3351 have dust masses of 6.5-9.1 times; 107 M⊙, which are a factor of ~10 higher than the value found for NGC 3077. This result shows that NGC 3077 is a dust deficient galaxy, as was expected, because this galaxy is affected by tidal interactions with its neighboring galaxies M81 and M82. NGC 3077 reveals a dust-to-gas ratio of 17.5%, much higher than the average ratio of 1.8% of the isolated galaxies, evidencing that NGC 3077 is also deficient in H2 + HI gas. Therefore, it seems that, in this galaxy, gas has been stripped more efficiently than dust.

KW - Dust mass

KW - Dust-to-gas ratio

KW - Spiral galaxies

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U2 - 10.3390/galaxies5030053

DO - 10.3390/galaxies5030053

M3 - Article (Academic Journal)

AN - SCOPUS:85030848734

SN - 2075-4434

VL - 5

JO - Galaxies

JF - Galaxies

IS - 3

M1 - 53

ER -

Dust deficiency in the interacting galaxy NGC 3077

Abstract

Keywords

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