Massive stars are extremely rare: for every 20Mo star in the Milky Way there are roughly a hundred thousand solar-type stars; for every 100 Mo star there should be over a million solar-type stars. In part this is due to their short lifetimes (a few million years) and the power-law nature of the initial mass function. Nevertheless, these rare objects exert a disproportional influence over their environments during their lifetimes. Through the actions of their strong stellar winds and eventual disruption as supernovae, they provide most of the mechanical input into the ISM. They also provide most of the UV ionizing radiation in galaxies, and power the far-IR luminosities through the heating of dust. And, massive stars serve as the primary source of carbon, nitrogen, and oxygen enrichment in the universe. They are also believed to be the source of the most energetic phenomenon yet found, emitting gamma-ray bursts as they collapse into blacko holes.

This workshop is aimed at honoring the scientific accomplishments of Peter S. Conti, who has also had a lifetime of influence over the field of massive star research. The workshop will consist of invited and contributed talks on current research plus posters, and will cover the following topics:

• Unevolved massive stars (OBs)
• Evolved massive stars (WRs, LBVs, RSGs)
• Massive stars in starbursts
• Young massive stars
• Where do we go from here?
  

  Scientific Organizing committee:

    Margaret Hanson, Kelsey Johnson, Philip Massey
  

  Local Organizing committee:

   Deidre Hunter, Jeff Hall, Philip Massey
  

  For more information, contact phil.massey at lowell.edu.

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  Registration

  The venue at Lowell is limited to about 80 participants; this allows us to have a small, friendly meeting. Pre-registration was manatory, and even so we had to turn down a number of people as response to the meeting has been overwhelming. Everone who wished to remain on the wait-list has now heard from us. The final program can be found by following the link above.

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  Proceedings

  There will be no hardcopy proceedings. A conference summary will be published in PASP. In addition, we will publish on-line any submissions in a suitable format, e.g., Powerpoint presentations, Postscript or PDF files, scanned transparencies, links to preprints, etc.
  
  
  

  Important Dates

  August 15 is the registration/abstract deadline for pre-registered participants. On Aug 16 the registration page will be removed---please register before then.

  You may cancel your registration and receive a full refund of the registration fee through September 12. No refunds will be given after this date -- no exceptions.

  
  

  August 15:	Registration and abstract subsmission deadline
  September 12:	Final date for refunds of registration fee
  October 12:	Reception in Steele Visitor Center a, 5:30-7:30 PM
  October 13 - 15:	Workshop sessions, Lowell Observatory, Giclas Lecture Hall (Posters in the Rotunda)
  October 13:	Workshop Dinner and Clark Telescope observing, Lowell Observatory
  October 14:	Workshop Closing Dinner, Lowell Observatory
  October 15: (noon)	Workshop ends

  
  
  
  

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