meeting 2025 08 27 n57 - JacobPilawa/TriaxSchwarzschild_wiki_6 GitHub Wiki

Context

  • Gathering some notes for brief meeting with Chung-Pei today regarding the N57 environment and scaling relation plots.

  • First, just to set the stage, here's the data that Emily handed to me which produce her H15 scaling relation Figure. This data seems to be exactly what was in Thomas+16 with the addition of H15, so any new measurements between then (2016) and now are likely missing.

Name Dist Mbh_low Mbh_mid Mbh_high Sigma Rb_low Rb_mid Rb_high Rsoi_low Rsoi_mid Rsoi_high
NGC 3379 10.57 3.100e+08 4.100e+08 5.100e+08 206.0 0.0537 0.0562 0.0575 0.0421 0.0520 0.0643
NGC 3608 23.00 3.700e+08 4.700e+08 5.700e+08 182.0 0.0214 0.0234 0.0257 0.0460 0.0600 0.0783
NGC 4261 31.60 4.100e+08 5.200e+08 6.200e+08 315.0 0.1738 0.1820 0.1905 0.0803 0.0950 0.1124
NGC 1399 21.10 4.400e+08 9.100e+08 1.800e+09 296.0 0.2455 0.2512 0.2570 0.0988 0.1111 0.1249
NGC 4291 25.00 6.300e+08 9.200e+08 1.210e+09 242.0 0.0389 0.0398 0.0407 0.0501 0.0611 0.0742
NGC 4374 18.45 8.400e+08 9.200e+08 1.020e+09 296.0 0.1259 0.1318 0.1380 0.0748 0.0911 0.1111
NGC 7768 112.80 9.000e+08 1.300e+09 1.800e+09 257.0 0.1549 0.1585 0.1622 0.1237 0.1442 0.1678
NGC 7619 51.52 2.200e+09 2.500e+09 3.300e+09 292.2 0.1047 0.1202 0.1349 0.1172 0.1541 0.2025
NGC 4472 17.14 2.400e+09 2.500e+09 2.800e+09 300.2 0.1445 0.1514 0.1585 0.1666 0.2060 0.2554
IC 1459 30.90 1.600e+09 2.800e+09 3.900e+09 315.0 0.0933 0.1023 0.1148 0.1030 0.1240 0.1492
NGC 5516 58.44 3.000e+09 3.300e+09 3.500e+09 328.2 0.1660 0.1738 0.1820 0.1901 0.2362 0.2928
NGC 6086 133.00 2.500e+09 3.600e+09 5.300e+09 318.0 0.3388 0.3548 0.3631 0.3341 0.3916 0.4589
NGC 3091 51.25 3.400e+09 3.600e+09 3.700e+09 297.2 0.1445 0.1549 0.1660 0.1425 0.1841 0.2380
NGC 1550 51.57 3.300e+09 3.700e+09 4.100e+09 270.1 0.2754 0.2951 0.3236 0.1670 0.2333 0.3261
NGC 1407 28.05 4.100e+09 4.500e+09 5.400e+09 276.1 0.2630 0.2754 0.2818 0.2850 0.3793 0.5048
NGC 5328 64.10 2.800e+09 4.700e+09 5.600e+09 332.9 0.2512 0.2630 0.2754 0.2735 0.3244 0.3840
NGC 4649 17.30 3.900e+09 5.000e+09 6.100e+09 341.0 0.2344 0.2399 0.2455 0.2153 0.2542 0.3001
NGC 4486 17.22 5.700e+09 6.200e+09 6.600e+09 324.0 0.6607 0.6761 0.7079 0.3357 0.4545 0.6152
NGC 3842 98.40 7.200e+09 9.700e+09 1.270e+10 270.0 0.3162 0.3311 0.3467 0.4012 0.4914 0.6017
NGC 4889 103.20 5.000e+09 2.100e+10 3.700e+10 347.0 0.7586 0.7943 0.8128 0.7352 0.8533 0.9879
NGC 1600 64.00 1.550e+10 1.700e+10 1.850e+10 293.0 0.6607 0.6761 0.6918 0.8346 1.0578 1.3403
  • Of these 21 galaxies, 11 have Mbh>3 billion solar masses:
Name Dist Mbh_low Mbh_mid Mbh_high Sigma Rb_low Rb_mid Rb_high Rsoi_low Rsoi_mid Rsoi_high
NGC 5516 58.44 3.000e+09 3.300e+09 3.500e+09 328.2 0.1660 0.1738 0.1820 0.1901 0.2362 0.2928
NGC 6086 133.00 2.500e+09 3.600e+09 5.300e+09 318.0 0.3388 0.3548 0.3631 0.3341 0.3916 0.4589
NGC 3091 51.25 3.400e+09 3.600e+09 3.700e+09 297.2 0.1445 0.1549 0.1660 0.1425 0.1841 0.2380
NGC 1550 51.57 3.300e+09 3.700e+09 4.100e+09 270.1 0.2754 0.2951 0.3236 0.1670 0.2333 0.3261
NGC 1407 28.05 4.100e+09 4.500e+09 5.400e+09 276.1 0.2630 0.2754 0.2818 0.2850 0.3793 0.5048
NGC 5328 64.10 2.800e+09 4.700e+09 5.600e+09 332.9 0.2512 0.2630 0.2754 0.2735 0.3244 0.3840
NGC 4649 17.30 3.900e+09 5.000e+09 6.100e+09 341.0 0.2344 0.2399 0.2455 0.2153 0.2542 0.3001
NGC 4486 17.22 5.700e+09 6.200e+09 6.600e+09 324.0 0.6607 0.6761 0.7079 0.3357 0.4545 0.6152
NGC 3842 98.40 7.200e+09 9.700e+09 1.270e+10 270.0 0.3162 0.3311 0.3467 0.4012 0.4914 0.6017
NGC 4889 103.20 5.000e+09 2.100e+10 3.700e+10 347.0 0.7586 0.7943 0.8128 0.7352 0.8533 0.9879
NGC 1600 64.00 1.550e+10 1.700e+10 1.850e+10 293.0 0.6607 0.6761 0.6918 0.8346 1.0578 1.3403
  • For the environmental plot, I tried to find all galaxies with dynamical Mbh mass measurements greater than 3 billion solar masses:

    • It looks like there are 9 additions to the >3 billion case above, with most of them being very new measurements. Note that 4751 is "borderline" in that there are a few models presented in the paper which straddle 3 billion, but I'm opting to include it. There's also the 2013 Rusli measurement (stellar) which has the mass at 1.4 billion, but I'm choosing the ALMA CO measurement here (WISDOM team).
  • I tried to track down luminosity-weighted dispersions and break radii for the galaxies NOT present in the table above. NGC 1277/NGC383/NGC4751 rb doesn't appear to have been measured, at least that I can find.

Name APPEAR IN TABLE ABOVE? z D_SBF (Mpc) D_lit (Mpc) M_bh (10^9 M☉) σ (km/s) r_b (kpc) N_HDC M_Halo (10^14 M☉) ν₁₀/ν̃ Reference
NGC 1407 YES 0.006 28.05 4.5 276 0.275 12 1.11 93 Rusli+13
NGC 1550 YES 0.012 51.57 3.7 270 0.295 7 0.99 22 Rusli+13
NGC 1600 YES 0.016 71.7 64.0 19.1 293 0.676 15 1.54 600 Thomas+16
NGC 3091 YES 0.013 51.25 3.6 297 0.155 7 0.76 120 Rusli+13
NGC 3842 YES 0.021 87.5 98.4 8.63 270 0.331 42 5.96 15000 McConnell+11
M 87 YES 0.004 16.7 16.8 5.34 324 0.676 68 5.01† 13000 Liepold+23
NGC 4649 YES 0.004 16.5 15.7 4.73 341 0.240 68 5.01† 2200 Shen & Gebhardt 2010
NGC 4889 YES 0.022 99.1 103.2 20.17 347 0.794 49 19.95† 14000 McConnell+11
NGC 5328 YES 4.7 333 0.263
NGC 6086 YES 3.6 318 0.355
NGC 5516 YES 3.3 328 0.182
NGC 5419 NO 0.014 56.2 7.2 350 0.430 25 2.14 2100 Mazzalay+16
H15 NO 0.056 222.3 21.6 303 2.79 82 6.1 20000 Liepold+25
NGC 57 NO 0.018 66.9 64.6 9.5 257 0.430 1 0.21 2 This work
NGC 315 NO 0.017 68.1 65.9 3.0 341 0.346 6 0.35 170 Pilawa+25
NGC 708 NO 0.016 61.5 68.5 8.98 200 0.724 39 2.92 8200 DeNicola+24
NGC 1277 NO 0.017 71.0 4.9 333 117 6.70 710000 Walsh+16
NGC 383 NO 3.58 239
NGC 4751 NO 3.43 355
  • A few other notes:

    • I originally included NGC 997 in my table above, but it turns out that the mass is incorrect in the Big Galaxies and Big Black holes paper (incorrectly listed as >3 billion, when it's actually 9.5e8 Msun or so). Discussed this with Emily and we figured out why that was the case.
  • Moving forward:

    • I think it's just a matter of me tracking down the group membership, halo masses, and computing nu10 for the "new" galaxies that currently are blank. It's been a bit of a hassle organizing all the data/tracking down rbs/sigmas, but this is next on the list. The group membership should all be straightforward, computing nu10 a bit more involved since it's been awhile since I've revised those calculations.