How does star formation build a galactic disk?

被引：0
|
作者：
Wong, T [1 ]
Blitz, L [1 ]
机构：
[1] Australia Telescope Natl Facil, Epping, NSW 1710, Australia
来源：
Initial Mass Function 50 years Later | 2005年 / 327卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The combination of near-infrared and Hoe photometry with CO and H I imaging allows us to probe past, ongoing, and future star formation in galaxies. Such a comparison for our Galaxy has yielded a puzzling contradiction between the derived star formation history and the assumed star formation law, but the uncertainties in the gas and stellar radial profiles are large. Recent data for seven nearby galaxies are presented and reveal no such contradiction: star formation has roughly declined in accordance with the consumption of gas assuming a standard Schmidt star formation law, arguing against strong temporal variations in the IMF. Furthermore, the effective oxygen yield shows no strong radial gradient, arguing against strong radial variations in the IMF.
引用
收藏
页码：299 / 300
页数：2
相关论文
共 50 条
  • [1] Chemical enrichment and star formation in the Galactic disk
    Rocha-Pinto, HJ
    [J]. MODES OF STAR FORMATION AND THE ORIGIN OF FIELD POPULATIONS, PROCEEDINGS, 2002, 285 : 248 - 255
  • [2] Massive Star Formation Throughout the Galactic Disk
    Kurtz, Stan
    [J]. HIGHLIGHTS OF ASTRONOMY, VOL 15, 2010, 15 : 798 - 798
  • [3] COHERENT WAVES OF STAR FORMATION IN A GALACTIC DISK
    KORCHAGIN, VI
    RYABTSEV, AD
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 255 (01) : 19 - 26
  • [4] Simulating star formation and feedback in galactic disk models
    Tasker, EJ
    Bryan, GL
    [J]. ASTROPHYSICAL JOURNAL, 2006, 641 (02): : 878 - 890
  • [5] Star formation triggered by impact of HVCs on the galactic disk
    Lépine, JRD
    Sartori, MJ
    Marinho, EP
    [J]. STROMLO WORKSHOP ON HIGH-VELOCITY CLOUDS, 1999, 166 : 165 - 169
  • [6] A Dynamical Model for Clustered Star Formation in the Galactic Disk
    Kamdar, Harshil
    Conroy, Charlie
    Ting, Yuan-Sen
    Bonaca, Ana
    Johnson, Benjamin
    Cargile, Phillip
    [J]. ASTROPHYSICAL JOURNAL, 2019, 884 (02):
  • [7] HOW GALACTIC ENVIRONMENT REGULATES STAR FORMATION
    Meidt, Sharon E.
    [J]. ASTROPHYSICAL JOURNAL, 2016, 818 (01):
  • [8] Planetary nebulae and star formation history in the Galactic disk and bulge
    Milanova, Yulia
    Kholtygin, Alexander
    [J]. CHEMICAL ABUNDANCES IN THE UNIVERSE: CONNECTING FIRST STARS TO PLANETS, 2010, (265): : 313 - 316
  • [9] Age–Metallicity Relation and Star Formation History of the Galactic Disk
    Helio J. Rocha-Pinto
    Walter J. Maciel
    John Scalo
    Chris Flynn
    [J]. Astrophysics and Space Science, 1999, 265 : 245 - 246
  • [10] Age-metallicity relation and star formation history of the Galactic disk
    Rocha-Pinto, HJ
    Maciel, WJ
    Scalo, J
    Flynn, C
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 1999, 265 (1-4) : 245 - 246
12345