Diffuse ionized gas in the dwarf galaxy DDO 53

Nahiely Flores-Fajardo; Ana Maria Hidalgo-Gámez

doi:10.1007/978-3-540-71173-5_8

Diffuse ionized gas in the dwarf galaxy DDO 53

Nahiely Flores-Fajardo, Ana Maria Hidalgo-Gámez

Escuela Superior de Física y Matemáticas (ESFM)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We study the diffuse ionized gas (DIG) in the M81 group dwarf irregular galaxy DDO 53. We use long-slit spectroscopy in order to determine the most interesting line ratios. We compare these ratios with classical and leaking photoionization, shocks and turbulent layer models. As other dwarf irregular galaxies, the spectral characteristics are very diferent to those of the DIG in spiral galaxies: the excitation is higher and the [SII/Hα] much lower. A combination of leakage photoionization models plus shocks will be able to explain these characteristics.

Original language	English
Title of host publication	Groups of Galaxies in the Nearby Universe
Subtitle of host publication	Proceedings of the ESO Workshop held at Santiago de Chile, December 5-9, 2005
Editors	Ivo Saviane, Valentin Ivanov, Jordanka Borissova
Pages	47-49
Number of pages	3
DOIs	https://doi.org/10.1007/978-3-540-71173-5_8
State	Published - 2007

Publication series

Name	ESO Astrophysics Symposia
Volume	2007
ISSN (Print)	1431-2433
ISSN (Electronic)	1611-6143

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10.1007/978-3-540-71173-5_8

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title = "Diffuse ionized gas in the dwarf galaxy DDO 53",

abstract = "We study the diffuse ionized gas (DIG) in the M81 group dwarf irregular galaxy DDO 53. We use long-slit spectroscopy in order to determine the most interesting line ratios. We compare these ratios with classical and leaking photoionization, shocks and turbulent layer models. As other dwarf irregular galaxies, the spectral characteristics are very diferent to those of the DIG in spiral galaxies: the excitation is higher and the [SII/Hα] much lower. A combination of leakage photoionization models plus shocks will be able to explain these characteristics.",

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Diffuse ionized gas in the dwarf galaxy DDO 53. / Flores-Fajardo, Nahiely; Hidalgo-Gámez, Ana Maria.
Groups of Galaxies in the Nearby Universe: Proceedings of the ESO Workshop held at Santiago de Chile, December 5-9, 2005. ed. / Ivo Saviane; Valentin Ivanov; Jordanka Borissova. 2007. p. 47-49 (ESO Astrophysics Symposia; Vol. 2007).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hidalgo-Gámez, Ana Maria

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N2 - We study the diffuse ionized gas (DIG) in the M81 group dwarf irregular galaxy DDO 53. We use long-slit spectroscopy in order to determine the most interesting line ratios. We compare these ratios with classical and leaking photoionization, shocks and turbulent layer models. As other dwarf irregular galaxies, the spectral characteristics are very diferent to those of the DIG in spiral galaxies: the excitation is higher and the [SII/Hα] much lower. A combination of leakage photoionization models plus shocks will be able to explain these characteristics.

AB - We study the diffuse ionized gas (DIG) in the M81 group dwarf irregular galaxy DDO 53. We use long-slit spectroscopy in order to determine the most interesting line ratios. We compare these ratios with classical and leaking photoionization, shocks and turbulent layer models. As other dwarf irregular galaxies, the spectral characteristics are very diferent to those of the DIG in spiral galaxies: the excitation is higher and the [SII/Hα] much lower. A combination of leakage photoionization models plus shocks will be able to explain these characteristics.

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DO - 10.1007/978-3-540-71173-5_8

M3 - Contribución a la conferencia

SN - 3540711724

SN - 9783540711728

T3 - ESO Astrophysics Symposia

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BT - Groups of Galaxies in the Nearby Universe

A2 - Saviane, Ivo

A2 - Ivanov, Valentin

A2 - Borissova, Jordanka

ER -

Diffuse ionized gas in the dwarf galaxy DDO 53

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