Star Formation Dark Matter and Baryons Gravity (DM) defines large - PowerPoint PPT Presentation

Star Formation

Dark Matter and Baryons ★ Gravity (DM) defines large scale structure of the Universe ★ Baryons are mostly hitchhiking a ride ★ Yet, their physical interactions are far richer ★ “Gastrophysics” ★ How are stars formed? KAS16/MT Lecture1II - Star Formation 2

KAS16/MT Lecture1II - Star Formation 3

★ Gas in the Interstellar Medium is not dense enough KAS16/MT Lecture1II - Star Formation 18

Radiative cooling ★ How do you expect cooling to depend on metallicity of gas? KAS16/MT Lecture1II - Star Formation 19

Radiative cooling and “metals” ★ The more “metals” the more efficient the cooling: many energy levels available ★ Simple atoms and molecules are inefficient at radiative cooling ★ Metal-free gas (Z<10 -3.5 Z Sun ) hard to cool ★ What is your expectation for the Jeans mass in first gas clouds? KAS16/MT Lecture1II - Star Formation 20

Log{Cooling efficiency} ★ But cooling efficiency grows with temperature KAS16/MT Lecture1II - Star Formation 21

Log{Cooling efficiency} ★ But cooling efficiency grows with temperature ★ WHY? KAS16/MT Lecture1II - Star Formation 22

DM halos and cooling of gas ★ Temperature of gas in DM halos depends on halo mass and redshift ★ There is a minimum halo mass for which cooling is efficient (cooling time less than Hubble time) KAS16/MT Lecture1II - Star Formation 23

Minimum halo for cooling T vir =1e4K M cool minimum halo mass for cooling z Trenti & Stiavelli (2009) KAS16/MT Lecture1II - Star Formation 24

The simple picture Gas cloud starts to contract It gets smaller and denser And smaller... Denser, Hotter until H-fusion begins: A star is born! KAS16/MT Lecture1II - Star Formation 25

T [K] n [cm -3 ] Smith et al. (2009) KAS16/MT Lecture1II - Star Formation 30

Star Formation Dark Matter and Baryons Gravity (DM) defines large - PowerPoint PPT Presentation

Star Formation Dark Matter and Baryons Gravity (DM) defines large scale structure of the Universe Baryons are mostly hitchhiking a ride Yet, their physical interactions are far richer Gastrophysics How are stars

The Effects of Baryons on Dark Matter Halos: A Brief Summary Andrew R. Zentner University of

MILLI-LENSING AS A PROBE OF DARK MATTER Simona Vegetti - Max Planck Institute for Astrophysics

Dark Matter and Structure Formation Hai-Bo Yu University of California, Riverside TAUP , 2019

Star formation in alternative dark matter dwarfs: then and now Mark R. Lovell 1,2 , Jess

The Cluster Soft Excess A possible reservoir of baryons (and maybe dark matter) at the outskirts

A common origin of Baryons and Dark Matter via gravitational collapse of Primordial Black Holes

baryons, dark matter or non-circular motions? Isabel Santos-Santos Postdoctoral Research Fellow

Baryons, Dark Matter, and Light Scalars Takeshi Kobayashi (SISSA) based on arXiv:1612.04824,

Asymmetric dark matter from and New Strong Dynamics Mads Toudal Frandsen Rudolf Peierls Centre

Motivation Cosmological observations indicate that dark matter (DM) has to be cold and

Credit: ESO/G Credit: ESA/Hubble DARK MATTER Dark Matter 10 x Luminous Matter Dark Matter

Linear Regime of Structure Formation with Scalar Field Dark Matter considering an Axion-like

Dark matter and its implications at the LHC Conclusions . Numerical Calculation Motivation MC

Dwarf Galaxy Formation with Dwarf Galaxy Formation with H 2 -regulated Star Formation H 2

The Bimodal Formation Time Distribution of Infall Dark Matter Halos and Its Effect on Galaxies

Searching for the Dark Matter Wind: a Novel Approach to Dark Matter Detection Jocelyn Monroe, MIT

Towards an effective theory of structure formation with new dark matter physics Jess Zavala

QUANTUM MATERIALS & DARK MATTER DETECTION MOTIVATION NEW DIRECTIONS IN DARK MATTER THEORY

Gamma Rays from Star Forming Galaxies and Dark Matter Non-Thermal plasma: T ion electron f( v

Radio signals and Fast Radio Bursts from axion dark matter and axion star through SKA Fa

Modelling the connection between galaxies and their dark matter halos Carlton Baugh Institute

DARK MATTER IN DSPH Paolo Salucci (& G. Gilmore) SISSA (Oxford) Outline of the Review Dark

Dark Matter Profiles in Tiny Galaxies (and others too) James Bullock (University of California,

Alternatives to Dark Energy and Dark Matter and their implications Evidence for Dark Energy and

Star Formation Dark Matter and Baryons Gravity (DM) defines large - PowerPoint PPT Presentation

Star Formation Dark Matter and Baryons Gravity (DM) defines large scale structure of the Universe Baryons are mostly hitchhiking a ride Yet, their physical interactions are far richer Gastrophysics How are stars

The Effects of Baryons on Dark Matter Halos: A Brief Summary Andrew R. Zentner University of

MILLI-LENSING AS A PROBE OF DARK MATTER Simona Vegetti - Max Planck Institute for Astrophysics

Dark Matter and Structure Formation Hai-Bo Yu University of California, Riverside TAUP , 2019

Star formation in alternative dark matter dwarfs: then and now Mark R. Lovell 1,2 , Jess

The Cluster Soft Excess A possible reservoir of baryons (and maybe dark matter) at the outskirts

A common origin of Baryons and Dark Matter via gravitational collapse of Primordial Black Holes

baryons, dark matter or non-circular motions? Isabel Santos-Santos Postdoctoral Research Fellow

Baryons, Dark Matter, and Light Scalars Takeshi Kobayashi (SISSA) based on arXiv:1612.04824,

Asymmetric dark matter from and New Strong Dynamics Mads Toudal Frandsen Rudolf Peierls Centre

Motivation Cosmological observations indicate that dark matter (DM) has to be cold and

Credit: ESO/G Credit: ESA/Hubble DARK MATTER Dark Matter 10 x Luminous Matter Dark Matter

Linear Regime of Structure Formation with Scalar Field Dark Matter considering an Axion-like

Dark matter and its implications at the LHC Conclusions . Numerical Calculation Motivation MC

Dwarf Galaxy Formation with Dwarf Galaxy Formation with H 2 -regulated Star Formation H 2

The Bimodal Formation Time Distribution of Infall Dark Matter Halos and Its Effect on Galaxies

Searching for the Dark Matter Wind: a Novel Approach to Dark Matter Detection Jocelyn Monroe, MIT

Towards an effective theory of structure formation with new dark matter physics Jess Zavala

QUANTUM MATERIALS &amp; DARK MATTER DETECTION MOTIVATION NEW DIRECTIONS IN DARK MATTER THEORY

Gamma Rays from Star Forming Galaxies and Dark Matter Non-Thermal plasma: T ion electron f( v

Radio signals and Fast Radio Bursts from axion dark matter and axion star through SKA Fa

Modelling the connection between galaxies and their dark matter halos Carlton Baugh Institute

DARK MATTER IN DSPH Paolo Salucci (&amp; G. Gilmore) SISSA (Oxford) Outline of the Review Dark

Dark Matter Profiles in Tiny Galaxies (and others too) James Bullock (University of California,

Alternatives to Dark Energy and Dark Matter and their implications Evidence for Dark Energy and

QUANTUM MATERIALS & DARK MATTER DETECTION MOTIVATION NEW DIRECTIONS IN DARK MATTER THEORY

DARK MATTER IN DSPH Paolo Salucci (& G. Gilmore) SISSA (Oxford) Outline of the Review Dark