Virgo Survey: Single Peak Galaxies

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1 Virgo Survey: Single Peak Galaxies
祖父江義明 U. Tokyo

2 ALMA時代の銀河研究 １．日米欧干渉計事情 ２．ALMAは干渉計 3. NMAからの正面突破

3 (BERKELEY ILLINOIS MARYLAND ASSOCIATION CO Survey of Nearby Galaxies)
BIMA SONG (BERKELEY ILLINOIS MARYLAND ASSOCIATION CO Survey of Nearby Galaxies)

4 (Owens Valley Radio Observatory )
OVRO (Owens Valley Radio Observatory )

5 Plateau de Bure Interferometer
IRAM Plateau de Bure Interferometer

6 Nobeyama mm Array NMA

7 CO-Line： No Extinction Central Concentration High Velocity Resolution High Spatial Resolution High Sensitivity

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11 d=1 pc d=1 pc 45m Milky Way Galactic Center D = 10 kpc Θ=15” NMA
Virgo Cluster Galaxies D = 16 Mpc Θ=1” d=100 pc ALMA Nearby Cluster Galaxies D = Mpc Θ=0.01” d=1 pc

12 NGC 3079

13 PV Diagram HI (Irwin & Seaquist 91) CO (NMA)

14 超高密度分子コア 100 pc 銀河系と比較

15 Virgo central rotation curves
Nearby gal. Nuclear steep rise = Universal ! Discussion: “Single Peaks” vs “Twin Peaks” Twin Activity Ico,center

16 Surf. Mass Density Core Bulge Disk Halo

17 ALMA RC (1pc=0.01”) (1) Detailed RC 1 – 100 pc (2) Mass Distribution 1-100 pc, BH-connection

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19 “Speak” vs “Twin”

20 ”Twin” to “Single”

21 Accretion-Activity Cycle
“Single peaks” Accretion-Activity Cycle Pre-burst accretion S-peak, mol. core Post-burst Burst, Activity Gas exhaust. (Ho et al ApJ.S.,112, 315)

22 Ico=5660 K km/s-1 　

23 303 K km/s-1 　

24 744 K km/s-1 　

25 246 K km/s-1 　

26 337 K km/s-1 　

27 762 K km/s-1 　

28 Single Peaks Ico > 500 K km/s

29 High-Density Molecular Core for usual Conv. X (1x1020 H2/ K km-1)
High-Density Molecular Core for usual Conv.X (1x1020 H2/ K km-1) N(H2) > 1023 H2/cm M(H2) ~ a few 10^8 Msun (cf Mdyn ~ 10^9 Msun) SF surpresed=Preburst core

30 [1] Bar accretion “Twin peaks” + Ring
[2] Feeding Nuclei [3] Nucl. Mol. Core, “Single Peak” preburst [4] Start burst/AGN

31 Conversion X Anomaly X < 0
Conversion X Anomaly X < 0.1 x 1020 H2 / K km-1 Metallicity Temperature

32 ALMA Mappping (1pc=0. 01”) Detailed distribution/Dynamics of ISM in M
ALMA Mappping (1pc=0.01”) Detailed distribution/Dynamics of ISM in M.Cores 1 – 100 pc Higher Transitions & Various Species in Sub-mm ISM Physics/Chemistry

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34 ALMA時代の銀河研究 １．銀河の骨格、基幹構造の研究 ２．極限状態での星間物理と活動 ３．密度波、銀河衝撃波、 ＧスケールＳＦの見直し

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36 ALMA時代の銀河研究 ２００３－２００７ １．日米欧：敵情を知る。 ２．ALMAは干渉計である。 NMAを基艦に正面突破。

37 V NMA to ALMA connection