The purpose of MASSIF is to measure masses of stellar and substellar objects to high precision using state-of-the-art astrometric and spectroscopic techniques. Key areas of research include determining masses for the dominant members of the Galactic population, the red dwarfs, and development of the mass-luminosity relation for all stars.


Team MASSIF Basics Results


Construction Zone: Possible Papers

  • any?:  Special Cases of GJ 494 AB, GJ 845 BC, GJ 866 ABC, GJ 1215 AB, WT 460 AB
  • Dave:  First Masses for GJ 1001 BC
  • Otto:  Improved Masses for GJ 623 AB
  • Otto:  Definitive Masses for GJ 831 AB
  • Todd:  Improved Masses for GJ 22 AC, GJ 65 AB, GJ 234 AB, GJ 473 AB, and GJ 1245 AC
  • Todd:  First Orbits and Masses for GJ 54 AB, GJ 469 AB, GJ 1081 AB and G 250-29 AB
  • John:  White Dwarfs
  • Wei-Chun:  Subdwarfs
  • Todd & Willie:  Mass-Luminosity Relation from End to End


Future Mission Specs

SIM Details


MASSIF Special Samples

OB Stars Gies, Mason
White Dwarfs Nelan, Subasavage
Red Dwarfs Henry, Bean
Subdwarfs Jao
Brown Dwarfs Golimowski
Exotics ... all ...

MASSIF Clusters

Orion 05:32 -05:25 5 Myr 400 pc Stassun
Pleiades 03:44 +23:58 80 Myr 120 pc Torres
M 7 17:54 -34:49 220 Myr 240 pc James
Hyades 04:24 +15:45 630 Myr 50 pc Torres
M 67 08:47 +12:00 5000 Myr 800 pc Benedict
TW Hydrae DISCARDED 10 Myr 70 pc too sparse
IC 2602 DISCARDED 20 Myr 160 pc mu too low
IC 2391 08:38 -52:53 40 Myr 160 pc possible?
NGC 0752 DISCARDED 2700 Myr 360 pc


The MASSIF (a principal mountain mass) shown above is part of the Antarctic peninsula. The photograph was taken by T. Henry in February 1995.

 
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