Sloshing cold fronts in groups
Download
1 / 46

SLOSHING COLD FRONTS IN GROUPS - PowerPoint PPT Presentation


  • 89 Views
  • Uploaded on

SLOSHING COLD FRONTS IN GROUPS. FABIO GASTALDELLO (IASF-MILAN, UC IRVINE) DI GESU, BUOTE, ECKERT, ETTORI, GHIZZARDI, GIACINTUCCI, GIRARDI, HUMPHREY, ROSSETTI, ROEDIGER, DE GRANDI, MOLENDI, MATHEWS, BRIGHENTI.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' SLOSHING COLD FRONTS IN GROUPS' - efia


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Sloshing cold fronts in groups

SLOSHING COLD FRONTS IN GROUPS

FABIO GASTALDELLO

(IASF-MILAN, UC IRVINE)

DI GESU, BUOTE, ECKERT, ETTORI, GHIZZARDI, GIACINTUCCI, GIRARDI, HUMPHREY, ROSSETTI, ROEDIGER, DE GRANDI, MOLENDI, MATHEWS, BRIGHENTI


Outline

OUTLINE


SLOSHING CFs IN NGC 5044 5044, IC 1860, NGC 5846

z=0.009 kT=1.2 keV

Gastaldello+09


SLOSHING CFs IN NGC 5044 5044, IC 1860, NGC 5846

z=0.009 kT=1.2 keV

Gastaldello+09


SLOSHING CFs IN NGC 5044 5044, IC 1860, NGC 5846

Gastaldello+09


SLOSHING CFs IN NGC 5044 5044, IC 1860, NGC 5846

z=0.009 kT=1.2 keV

Gastaldello+09


Excess in ngc 5044

EXCESS IN NGC 5044 5044, IC 1860, NGC 5846


Excess in ngc 50441

EXCESS IN NGC 5044 5044, IC 1860, NGC 5846


Excess in ngc 50442

EXCESS IN NGC 5044 5044, IC 1860, NGC 5846


Sloshing cfs in ic 1860

z=0.022 kT=1.4 keV 5044, IC 1860, NGC 5846

SLOSHING CFs IN IC 1860

FG et al. submitted


Sloshing cfs in ic 18601

z=0.022 kT=1.4 keV 5044, IC 1860, NGC 5846

SLOSHING CFs IN IC 1860

FG et al. submitted


Sloshing cfs in ic 18602

SLOSHING CFs IN IC 1860 5044, IC 1860, NGC 5846

FG et al. submitted


Sloshing cfs in ic 18603

SLOSHING CFs IN IC 1860 5044, IC 1860, NGC 5846

FG et al. in prep


Sloshing cfs in ic 18604

SLOSHING CFs IN IC 1860 5044, IC 1860, NGC 5846


Sloshing cfs in ic 18605

SLOSHING CFs IN IC 1860 5044, IC 1860, NGC 5846


Comparison w simulations

COMPARISON W/ SIMULATIONS 5044, IC 1860, NGC 5846


Sloshing cfs in ngc 5846

SLOSHING CFs IN NGC 5846 5044, IC 1860, NGC 5846

Machacek+11


Sloshing cfs in ngc 58461

SLOSHING CFs IN NGC 5846 5044, IC 1860, NGC 5846

Machacek+11


Sloshing cfs in ngc 58462

SLOSHING CFs IN NGC 5846 5044, IC 1860, NGC 5846

Machacek+11


Sloshing cfs in ngc 58463

SLOSHING CFs IN NGC 5846 5044, IC 1860, NGC 5846


Sloshing cfs in ngc 58464

SLOSHING CFs IN NGC 5846 5044, IC 1860, NGC 5846


Peculiar velocities and perturbers

PECULIAR VELOCITIES AND PERTURBERS 5044, IC 1860, NGC 5846

AM 06


Peculiar velocities and perturbers ngc 5846

PECULIAR VELOCITIES AND PERTURBERS: NGC 5846 5044, IC 1860, NGC 5846

Machacek+11


Ngc 5850 high speed encounter with ngc 5846

NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ? 5044, IC 1860, NGC 5846

Higdon+98


Ngc 5850 high speed encounter with ngc 58461

NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ? 5044, IC 1860, NGC 5846

Higdon+98


Ngc 5850 high speed encounter with ngc 58462

NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ? 5044, IC 1860, NGC 5846

Higdon+98


Peculiar velocities and perturbers ngc 5044

MENDEL+08 STUDY OF 111 MEMBERS: 5044, IC 1860, NGC 5846

PECULIAR VELOCITY OF 156 km/s WRT THE MEAN VELOCITY

Z-score: 4.8σ

PECULIAR VELOCITIES AND PERTURBERS: NGC 5044


Peculiar velocities and perturbers ngc 50441

PECULIAR VELOCITIES AND PERTURBERS: NGC 5044 5044, IC 1860, NGC 5846

DETECTION OF A SUBSTRUCTURE (99.9 %) AT 1.4 Mpc MENDEL+08. OR NGC 5054 (DAVID+09).


Peculiar velocities and perturbers ngc 50442

PECULIAR VELOCITIES AND PERTURBERS: NGC 5044 5044, IC 1860, NGC 5846

cz = 2733 km/s

cz = 1658 km/s


Peculiar velocities and perturbers ngc 50443

cz = 2733 km/s 5044, IC 1860, NGC 5846

PECULIAR VELOCITIES AND PERTURBERS: NGC 5044

cz = 1658 km/s


Peculiar velocities and perturbers ic1860

PECULIAR VELOCITIES AND PERTURBERS: IC1860 5044, IC 1860, NGC 5846

STUDY OF 81 MEMBERS AVAILABLE IN NED:

PECULIAR VELOCITY OF 113±50 km/s (Z-score significant at the 2.3σ level) WRT THE MEAN VELOCITY


Peculiar velocities and perturbers ic18601

PECULIAR VELOCITIES AND PERTURBERS: IC1860 5044, IC 1860, NGC 5846

PRESENCE OF SUBSTRUCTURES AT A MARGINAL LEVEL 96%




Peculiar velocities and perturbers ngc 58461

PECULIAR VELOCITIES AND PERTURBERS: NGC 5846 5044, IC 1860, NGC 5846

39 OBJECTS WITHIN 400 Kpc, NO SIGNIFICANT SUBSTRUCTURES, PECULIAR VELOCITY OF THE BCG OF -119 Km/s SIGNIFICANT AT 1.6σ


Radio emission ngc 5044

RADIO EMISSION: NGC 5044 5044, IC 1860, NGC 5846

David+09

GMRT RADIO DATA AT 610 MHz


Radio emission ngc 50441

RADIO EMISSION: NGC 5044 5044, IC 1860, NGC 5846

David+09

GMRT RADIO DATA AT 235 MHz


Radio emission ngc 50442

RADIO EMISSION: NGC 5044 5044, IC 1860, NGC 5846

David+09

GMRT RADIO DATA AT 235 MHz


Radio emission ngc 5846

RADIO EMISSION: NGC 5846 5044, IC 1860, NGC 5846

Machacek+11

GMRT RADIO DATA AT 610 MHz


Radio emission ic 1860

RADIO EMISSION: IC 1860 5044, IC 1860, NGC 5846

ABSENCE OF EXTENDED 1.4 GHz EMISSION (DUNN+10)


Radio emission ic 18601

RADIO EMISSION: IC 1860 5044, IC 1860, NGC 5846

GMRT RADIO DATA AT 325 MHz. EMISSION AT THESE SCALES INDICATES VERY STEEP SPECTRUM.


Radio emission

RADIO EMISSION 5044, IC 1860, NGC 5846

ZuHone+13


Summary

  • COLD FRONTS IN RELAXED GROUPS ARE PROBABLY PROVIDING THE BEST EVIDENCE OF THE SLOSHING SCENARIO. WE FIND THE RIGHT FEATURES IN THE ICM, PECULIAR VELOCITIES OF THE BCGs AND GOOD CANDIDATES FOR THE PERTURBER

  • IN IC1860 WE HAVE EVIDENCE OF COINCIDENCE OF EXTENDED RADIO EMISSION SPATIALLY COINCIDENT WITH THE EXTENT OF A COLD FRONT (UNLIKE OTHER GROUPS). DO WE NEED REACCELERATION ?

SUMMARY


Wish list

  • SIMULATIONS TAILORED TO THE GROUP REGIME BEST EVIDENCE OF THE SLOSHING SCENARIO. WE FIND THE RIGHT FEATURES IN THE ICM, PECULIAR VELOCITIES OF THE BCGs AND GOOD CANDIDATES FOR THE PERTURBER

  • RADIO OBSERVATIONS AND PARTICLE ACCELERATIONS IN GROUPS

WISH LIST


ad