Infrared Astronomy Group

Group Members:

Gerd Weigelt, Director
Kristin Zelenevskiy, Assistant
Daniel Asmus
Paul Boley
Alessio Caratti o Garatti
Lei Chen
Juan Antonio Fernández-Ontiveros
Rebeca García López
Karl-Heinz Hofmann
Makoto Kishimoto
Brian Kloppenborg
Alexander Kreplin
Ryuichi Kurosawa
Stanislav Melnikov
David O'Brien
Keiichi Ohnaka
Dieter Schertl
Konrad Tristram
Jasmin Vural
Hugh Wheelwright

Research topics:

Young stellar objects, late stages of stellar evolution, active galactic nuclei, radiative transfer modeling, bispectrum speckle interferometry, IR long-baseline interferometry: VLTI⁄AMBER, LBT⁄LINC–NIRVANA, VLTI⁄MATISSE
LINC-NIRVANA Data Reduction Software

Press releases:

16. Mai 2012 - Futter für das schwarze Loch , Fuel for the black hole ,
25. Jan. 2011 - Riesenstern mit dicker Staubscheibe , Supergiant star with a thick dust disc ,
15 Juli 2010 - Blick in die Wiege eines Sterns , A glimpse into a star′s cradle ,
08 Dec. 2009 - Im Reich der schwarzen Löcher , Towards an exquisite look at black holes ,
05 Aug. 2009 - Double Engine for a Nebula (ESO)
29 July 2009 - Ein Gigant in Aufruhr , Unveiling the true face of a gigantic star , ESO
02 Apr. 2009 - Im Herzen des Orion-Nebels , In the heart of the Orion Nebula , MPG: or , A&A
Previous years
VLTI AMBER Instrument
VLTI/AMBER/MIDI


ATs
VLTI/ATs


LBT LINC-NIRVANA
LBT LINC-NIRVANA


  Evolved stars:

Eta Carinae
Eta Car
Speckle
Eta Carinae
Eta Car
HST FOC
Eta Carinae
Eta Car
Speckle, H Alpha
Eta Carinae
Eta Car
Homunculus
Eta Carinae
Eta Car
HST FOS spectro
Eta Carinae
Eta Car
Polarimetry
Eta Car 2008
Eta Car 2008
Speckle, H alpha
Eta Carinae
Eta Car
VLTI/AMBER
IRC+10216
IRC+10216 (1)
The carbon star IRC+10216
IRC+10216 (2)
The dust-shell evolution of the carbon star
IRC+10216 (3)
2d-model of the dust shell of IRC+10216
IRC+10216 (4)
J-band image of IRC+10216
IRC+10216 (5)
The bipolar nebula Red Rectangle
Red Rec (1)
The proto-planetary nebula Red Rectangle
Red Rec (2)
The proto-planetary nebula Red Rectangle
Red Rec (3)
The red supergiant VY CMa
VY CMa, NML
Cyg, WR 118,
IRC+10420
The Mira star R Cas
R Cas, R Leo
The AGB star CIT 3
CIT 3, OH104.9+2.4,
AFGL 2290, LP And
VLTI imaging
VLTI, LBT
The Be star MWC 349
MWC 349
Binary/Multiple Stars
Binaries 1-5
Gliese 569B
Gliese 569B
T Cep
T Cep, IOTA
R Cas, GI2T
Visibility of the post-AGB star R CrB
R CrB
IOTA
VINCI interferometry of o Cet
Mira
VLTI/VINCI
RR Sco
RR Sco
VLTI/MIDI
IOTA: Capella (α Aur)
Capella
IOTA
IRAS08002-3803
IRAS 08002
VLTI/MIDI
CPD-57°2874
CPD-57°2874
AMBER + MIDI
Kappa CMa
Kappa CMa
VLTI/AMBER
RS Oph
RS Oph
VLTI/AMBER
RS Oph
Gamma2 Velorum
VLTI/AMBER
Betelgeuse
Betelgeuse
VLTI/AMBER
HD87643
HD87643
VLTI/AMBER
Frosty Leonis
Frosty Leonis
BK Vir VLTI/AMBER
BK Vir
VLTI/AMBER
BM Gem
BM Gem
VLTI/MIDI
HD 327083
HD 327083
VLTI/AMBER
V Oph
V Oph
VLTI/MIDI
WR 118
WR118
VLTI/AMBER
HD62623
HD 62623
VLTI/AMBER

  Young stellar objects:

The starburst cluster NGC 3603
NGC 3603
Z CMa
Z CMa, NX Pup,
DF Tau, V376 Cas
spiral
Moving shadows
VLTI AMBER
Orion OB stars
LkHa 198, Elias 1, HK Ori, V380 Ori
LkHa198, Elias1,
HK Ori, V380 Ori
Outflows of the embedded star YSO S140
S140 IRS1 (1)
The massive protostellar object S140 IRS1
S140 IRS1 (2)
The deeply-embedded young stellar object S140 IRS3
S140 IRS3
The young stellar object R Mon
R Mon
The young stellar object Mon R2
Mon R2
The massive protostars in K3-50A
K3-50A
The young stellar object AFGL 2591
AFGL 2591
The young stellar object IRAS 23151+5912
IRAS 23151+5912
VLTI AMBER
NGC 7538
MIDI interferometry<BR>of Herbig AeBe stars
Herbig stars I
VLTI/MIDI
Disk image
Herbig stars II
VLTI/MIDI
VLTI AMBER
MWC 297
VLTI/AMBER
The multiple star Theta 1 Ori B
Theta 1 Ori C (1)
Orbital motion in Theta 1 Ori C
Theta 1 Ori C (2)
Theta1 OrionisC
Theta 1 Ori C
IOTA
Theta Ori C
Theta 1 Ori C
VLTI/AMBER
Dust disk
HD163296
HD104237
HD98922
MWC297
VLTI/AMBER
R Monocerotis
R Monocerotis
VLTI/AMBER: MWC297
MWC 297
VLTI/AMBER
VLTI/AMBER V921 Sco
B[e] V921 Sco
VLTI/AMBER
HR 5999 inner disk
HR 5999
VLTI/AMBER
Massive stars
IRAS 13481-6124
VLTI/AMBER
S CrA N
S CrA N
VLTI/AMBER
V921 Sco
V921 Sco
VLTI/AMBER
R CrA
R CrA
VLTI/AMBER
R CrA
V645 Cyg
VLTI/AMBER
HD 163296
HD 163296
MWC 275
AMBER
Z CMa
Z CMa
AMBER

  Extragalactic objects:

R 136
R 136
R 136
R 136
The Seyfert galaxy NGC 7469
NGC 7469
The Magellanic Cloud star cluster R64
R 64
The Seyfert galaxy NGC 1068
NGC 1068
K-band, 6m Tel
The Seyfert galaxy NGC 1068
NGC 1068
K-band, 6m Tel
The Seyfert galaxy NGC 1068
NGC 1068
VLTI/VINCI
The Seyfert galaxy NGC 1068
NGC 1068
VLTI/MIDI
NGC 1068
Radiative transfer modeling
WOH G64
WOH G64
in the LMC
VLTI/AMBER
LINC NIRVANA
LINC-NIRVANA
Baldwin effect
Baldwin effect
NGC3783, accretion disks
NGC 3783
VLTI/MIDI
NGC4151, Mrk231, NGC4051, QSO IRAS13349+2438
NGC4151, Mrk231,
NGC4051, & QSO
IRAS13349+2438
VLTI/AMBER: NGC3783
NGC 3783
VLTI/AMBER
dusty AGN
AKN120, IC4329A,
MrK 6, 3C273,
NGC 4151
VLTI/AMBER
NGC 424
NGC 424
VLTI/MIDI

IOTA JHK-spectro-interferometry<br>
IOTA JHK interferograms

Click image to enlarge.
Bispectrum Speckle Interferometry with 76 mas resolution
Real-time bispectrum speckle interferometry: 76 mas res. Frame rate of data recording & processing: ~2 per second.
SAO 6 m telescope, K-band.
Click image to enlarge
AMBER AT interferograms
H- and K-band VLTI-AMBER interferograms (two 1.8 m ATs; HD 48433)

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