VLTVLT--FLAMES Tarantula Survey of Massive StarsFLAMES Tarantula Survey of Massive Stars
Sergio SimSergio Simóónn--DDííaz az (on behalf of the VLT/FLAMES(on behalf of the VLT/FLAMES--II Tarantula Survey consortium)II Tarantula Survey consortium)
Jornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
ESO Large Programme (160hrs) : 184.D-0222 PI: C.J. EvansESO Large Programme (160hrs) : 184.DESO Large Programme (160hrs) : 184.D--0222 PI: C.J. Evans0222 PI: C.J. Evans
MultiMulti--epoch spectroscopy of over 800 Massive Stars epoch spectroscopy of over 800 Massive Stars in the 30 Dor region of the LMCin the 30 Dor region of the LMC
Three modes of Three modes of FLAMES@VLTFLAMES@VLT::
Medusa fibreMedusa fibre--fed fed + + GiraffeGiraffe ARGUS IFU + GiraffeARGUS IFU + Giraffe UVES in fibreUVES in fibre--fed modefed mode
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
10'
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Observations (I): Medusa + GiraffeObservations (I): Medusa + Giraffe
9 Medusa configurations9 Medusa configurations
Spatial coverage: 20Spatial coverage: 20’’
V<17V<17
No color cuts (to avoid No color cuts (to avoid selection biases)selection biases)
1000 targets1000 targets
LR02:LR02: 39603960--4564 4564 ÅÅ R=7000R=7000LR03:LR03: 44994499--5071 5071 ÅÅ R=8500R=8500HR15N:HR15N: 64426442--6817 6817 ÅÅ R=16000R=16000
MULTIMULTI--EPOCH: LR02EPOCH: LR02
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Observations (II): ARGUS IFU + GiraffeObservations (II): ARGUS IFU + Giraffe
5 pointings of R1365 pointings of R136
00””.52/spaxel mode.52/spaxel mode
FOV: 12FOV: 12”” x 7x 7””
LR02: 3960LR02: 3960--4570 4570 ÅÅ R=10500R=10500
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Observations (II): ARGUS IFU + GiraffeObservations (II): ARGUS IFU + Giraffe
5 pointings of R1365 pointings of R136
00””.52/spaxel mode.52/spaxel mode
FOV: 12FOV: 12”” x 7x 7””
LR02: 3960LR02: 3960--4570 4570 ÅÅ R=10500R=10500
Observations (III): UVESObservations (III): UVES
5 pointings: 25 stars (bonus!!)5 pointings: 25 stars (bonus!!)
520: 4175520: 4175--6200 6200 ÅÅ R=53000R=53000
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
Spectral type #
O-type 290B-type 485
Cool 90
WR/slash 20
Foreground ~100
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Some preliminary numbers ...Some preliminary numbers ...
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Effects of stellar rotation on massive star evolution?
Sufficient fast rotators to feed GRB channel?
Census and characterization of the massive stars popullation in 30 Dor
Binary fraction of massive stars?
Feedback to ISM from stellar winds? Stellar ionizing fluxes?
Dynamical evidence of infant mortality? mass
segregation?
Evolution of the most massive stars?
Investigation of important outstanding questions regarding
the formation, physical properties and evolution of massive stars
Scientific motivationsScientific motivations
Dynamical mass of R136?
Rotational velocity distribution in O and B stars?
30 Dor: A template for starburst and extragalactic HII regions
The nature of B Supergiants
Mass loss properties in massive stars
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
PI: C.J. Evans (UKATC, Edinburgh)PI: C.J. Evans (UKATC, Edinburgh)
N. Bastian, J.M. Bestenlehner, E. Bressert, N. Bastian, J.M. Bestenlehner, E. Bressert, I. Brott, M.A. Campbell, M. Cantiello, I. Brott, M.A. Campbell, M. Cantiello, G. Carraro, J.S. Clark, P.A. Crowther, G. Carraro, J.S. Clark, P.A. Crowther, A. de Koter, S.E. de Mink, E. Doran, A. de Koter, S.E. de Mink, E. Doran, P.L. Dufton, P. Dunstall, K. Friedrich, P.L. Dufton, P. Dunstall, K. Friedrich, M. Gieles, G. Graefener, V. HenaultM. Gieles, G. Graefener, V. Henault--Brunet, Brunet, I. Howarth, R. Izzard, N. Langer, I. Howarth, R. Izzard, N. Langer, D.J. Lennon, N. Markova, J. Puls, H. Sana, D.J. Lennon, N. Markova, J. Puls, H. Sana, S.J. Smartt, V.E. Stroud, W.D. Taylor, S.J. Smartt, V.E. Stroud, W.D. Taylor, J.Th. van Loon, J.S. Vink, N. WalbornJ.Th. van Loon, J.S. Vink, N. Walborn
People in the consortiumPeople in the consortium CountriesCountries
The spanish participationThe spanish participation
A. Herrero (IAC)A. Herrero (IAC)F. Najarro (CABF. Najarro (CAB--CSIC)CSIC)S. SimS. Simóónn--DDííaz (IAC)az (IAC)J. MaizJ. Maiz--Apellaniz (IAAApellaniz (IAA--CSIC)CSIC)C. SabC. Sabíín SanJulian (IAC) n SanJulian (IAC)
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
UK, The Netherlands, UK, The Netherlands, Chile, Germany, Austria, Chile, Germany, Austria, USA, Bulgaria, SpainUSA, Bulgaria, Spain
An exciting project supported by a motivating collaboration ...An exciting project supported by a motivating collaboration ...
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
• Large sample of OB stars at different metallicities
• Used open clusters as stellar nurseries:• 2x Milky Way• 2x LMC (Z ~ 40% solar)• 2x SMC (Z ~ 20% solar)
• FLAMES + FEROS + UVES• Analysis of >700 OB stars
in a series of 11 papers
... and built on the experience of a previous ESO Large Programm... and built on the experience of a previous ESO Large ProgrammeeThe VLT/FLAMES Survey of Massive stars (“FLAMES-I”)
171.D-0237 + 073.D-0234 (112 hrs) PI: S.J. Smartt
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
Evans et al. (2005, 2006)
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
Mdot Z0.83
Two of the main outcomes from FLAMESTwo of the main outcomes from FLAMES--II
Mass loss properties of massive starsMass loss properties of massive stars
FLAMESFLAMES--Tarantula (290 OTarantula (290 O--type stars!)type stars!)Mass loss as the most massive stars Mass loss as the most massive stars
evolve from O to Of/WN to WN typesevolve from O to Of/WN to WN types
Surface N abundaces in BSurface N abundaces in B--type starstype stars
Mokiem et al. (2007) 23 O-type stars Hunter et al. (2008, 2009)
FLAMESFLAMES--TarantulaTarantulaRotational mixing: more significant Rotational mixing: more significant
in O starsin O stars
VLTVLT--FLAMES Tarantula SurveyFLAMES Tarantula SurveyJornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11
10'R.V. analysis:
Single: 50%SB2: 14%SB1: 16%rvvar: 7%LPV: 6%Neb/other: 7%
Spectral type #O-type 290
B-type 485
Cool 90
WR/slash 20
Foreground ~100
The VLT/FLAMES Tarantula Survey of Massive starsThe VLT/FLAMES Tarantula Survey of Massive stars
SINGLE STARS VS. BINARIES !!!!SINGLE STARS VS. BINARIES !!!!
VLTVLT--FLAMES Tarantula Survey of Massive StarsFLAMES Tarantula Survey of Massive Stars
Sergio SimSergio Simóónn--DDííaz az (on behalf of the VLT/FLAMES(on behalf of the VLT/FLAMES--II Tarantula Survey consortium)II Tarantula Survey consortium)
Jornada ESO 2011 Jornada ESO 2011 ---- Granada, 11/02/11Granada, 11/02/11