Does the stellar disc flattening depend on the galaxy type?

A.V. Mosenkov, N.Y. Sotnikova, V.P. Reshetnikov, D.V. Bizyaev, S.J. Kautsch

Результат исследований: Научные публикации в периодических изданияхстатья

13 Цитирования (Scopus)

Выдержка

We analyse the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS catalogue. Combining these data with the retrieved models of the edge-on galaxies from the Two Micron All Sky Survey and the Spitzer Survey of Stellar Structure in Galaxies catalogue, we make the following conclusions. 1. The disc relative thickness z0/h in the near- and mid-infrared passbands correlates weakly with morphological type and does not correlate with the bulge-to-total luminosity ratio B/T in all studied bands. 2. Applying a 1D photometric profile analysis overestimates the disc thickness in galaxies with large bulges making an illusion of the relationship between the disc flattening and the ratio B/T. 3. In our sample, the early-type disc galaxies (S0/a) have both flat and `puffed' discs. The early spirals and intermediate-type galaxies have a large scatter of the disc flatness, which can be caused by the presence of a bar: barred galaxies have thicker stellar discs, on average. On the other hand, the late-type spirals are mostly thin galaxies, whereas irregular galaxies have puffed stellar discs.
Язык оригиналаанглийский
Страницы (с-по)2376-2389
Число страниц14
ЖурналMonthly Notices of the Royal Astronomical Society
Том451
Номер выпуска3
DOI
СостояниеОпубликовано - 2015

Отпечаток

flattening
galaxies
decomposition
flatness
catalogs
illusions
stellar structure
barred galaxies
irregular galaxies
disk galaxies
luminosity
analysis
profiles

Предметные области Scopus

  • Физика и астрономия (все)

Цитировать

Mosenkov, A.V. ; Sotnikova, N.Y. ; Reshetnikov, V.P. ; Bizyaev, D.V. ; Kautsch, S.J. / Does the stellar disc flattening depend on the galaxy type?. В: Monthly Notices of the Royal Astronomical Society. 2015 ; Том 451, № 3. стр. 2376-2389.
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title = "Does the stellar disc flattening depend on the galaxy type?",
abstract = "We analyse the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS catalogue. Combining these data with the retrieved models of the edge-on galaxies from the Two Micron All Sky Survey and the Spitzer Survey of Stellar Structure in Galaxies catalogue, we make the following conclusions. 1. The disc relative thickness z0/h in the near- and mid-infrared passbands correlates weakly with morphological type and does not correlate with the bulge-to-total luminosity ratio B/T in all studied bands. 2. Applying a 1D photometric profile analysis overestimates the disc thickness in galaxies with large bulges making an illusion of the relationship between the disc flattening and the ratio B/T. 3. In our sample, the early-type disc galaxies (S0/a) have both flat and `puffed' discs. The early spirals and intermediate-type galaxies have a large scatter of the disc flatness, which can be caused by the presence of a bar: barred galaxies have thicker stellar discs, on average. On the other hand, the late-type spirals are mostly thin galaxies, whereas irregular galaxies have puffed stellar discs.",
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doi = "10.1093/mnras/stv1085",
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Does the stellar disc flattening depend on the galaxy type? / Mosenkov, A.V.; Sotnikova, N.Y.; Reshetnikov, V.P.; Bizyaev, D.V.; Kautsch, S.J.

В: Monthly Notices of the Royal Astronomical Society, Том 451, № 3, 2015, стр. 2376-2389.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Does the stellar disc flattening depend on the galaxy type?

AU - Mosenkov, A.V.

AU - Sotnikova, N.Y.

AU - Reshetnikov, V.P.

AU - Bizyaev, D.V.

AU - Kautsch, S.J.

PY - 2015

Y1 - 2015

N2 - We analyse the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS catalogue. Combining these data with the retrieved models of the edge-on galaxies from the Two Micron All Sky Survey and the Spitzer Survey of Stellar Structure in Galaxies catalogue, we make the following conclusions. 1. The disc relative thickness z0/h in the near- and mid-infrared passbands correlates weakly with morphological type and does not correlate with the bulge-to-total luminosity ratio B/T in all studied bands. 2. Applying a 1D photometric profile analysis overestimates the disc thickness in galaxies with large bulges making an illusion of the relationship between the disc flattening and the ratio B/T. 3. In our sample, the early-type disc galaxies (S0/a) have both flat and `puffed' discs. The early spirals and intermediate-type galaxies have a large scatter of the disc flatness, which can be caused by the presence of a bar: barred galaxies have thicker stellar discs, on average. On the other hand, the late-type spirals are mostly thin galaxies, whereas irregular galaxies have puffed stellar discs.

AB - We analyse the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS catalogue. Combining these data with the retrieved models of the edge-on galaxies from the Two Micron All Sky Survey and the Spitzer Survey of Stellar Structure in Galaxies catalogue, we make the following conclusions. 1. The disc relative thickness z0/h in the near- and mid-infrared passbands correlates weakly with morphological type and does not correlate with the bulge-to-total luminosity ratio B/T in all studied bands. 2. Applying a 1D photometric profile analysis overestimates the disc thickness in galaxies with large bulges making an illusion of the relationship between the disc flattening and the ratio B/T. 3. In our sample, the early-type disc galaxies (S0/a) have both flat and `puffed' discs. The early spirals and intermediate-type galaxies have a large scatter of the disc flatness, which can be caused by the presence of a bar: barred galaxies have thicker stellar discs, on average. On the other hand, the late-type spirals are mostly thin galaxies, whereas irregular galaxies have puffed stellar discs.

KW - galaxies: statistics, galaxies: structure

U2 - 10.1093/mnras/stv1085

DO - 10.1093/mnras/stv1085

M3 - Article

VL - 451

SP - 2376

EP - 2389

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 3

ER -