Virpi Sinikka Niemelä

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All published works
Action Title Year Authors
+ PDF Chat Long-term optical monitoring of η Carinae - Multiband light curves for a complete orbital period 2009 E. Fernández Lajús
C. Fariña
A. F. Torres
Michael Schwartz
N. Salerno
J. P. Calderón
C. von Essen
Leila M. Calcaferro
F. Giudici
Claudio Llinares
+ PDF Chat Long-term optical monitoring of <i>η</i> Carinae 2008 E. Fernández Lajús
C. Fariña
A. F. Torres
Michael Schwartz
N. Salerno
J. P. Calderón
C. von Essen
Leila M. Calcaferro
F. Giudici
Claudio Llinares
+ PDF Chat Long-Term Optical Monitoring of Eta Carinae. Multiband light curves for a complete orbital period 2008 E. Fernández Lajús
C. Fariña
A. F. Torres
Michael Schwartz
N. Salerno
J. P. Calderón
C. von Essen
Leila M. Calcaferro
F. Giudici
Claudio Llinares
+ PDF Chat The very massive X-ray bright binary system Wack 2134 (= WR 21a)<sup>★</sup> 2008 Virpi Sinikka Niemelä
R. Gamen
R. H. Barbá
E. Fernández Lajús
P. Benaglia
G. R. Solivella
P. Reig
M. J. Coe
+ PDF Chat Discovery of a [WO] central star in the planetary nebula Th 2-A 2008 W. A. Weidmann
R. Gamen
Rubén Díaz
Virpi Sinikka Niemelä
+ PDF Chat The periodicity of the η Carinae events 2008 A. Damineli
D. J. Hillier
M. F. Corcoran
O. Stahl
R. S. Levenhagen
N. V. Leister
J. H. Groh
M. Teodoro
J. F. Albacete-Colombo
F. González
+ PDF Chat The environs of the H II region Gum 31 2007 C. E. Cappa
Virpi Sinikka Niemelä
R. Amorín
J. Vásquez
+ PDF Chat Pismis 24‐1: The Stellar Upper Mass Limit Preserved 2007 J. Maíz Apellániz
N. R. Walborn
N. Morrell
Virpi Sinikka Niemelä
Edmund Nelan
+ PDF Chat A search for OB stars in the field of the galactic OB association Bochum 7 2007 M. Corti
G. Bosch
Virpi Sinikka Niemelä
+ The stellar upper mass limit in the solar neighborhood 2007 J. Maíz Apellániz
N. R. Walborn
N. Morrell
E. Nelan
Virpi Sinikka Niemelä
P. Benaglia
A. Sota
+ The stellar upper mass limit in the solar neighborhood 2007 J. Maíz Apellániz
N. R. Walborn
N. Morrell
E. Nelan
Virpi Sinikka Niemelä
P. Benaglia
A. Sota
+ The environs of the HII region Gum31 2007 C. E. Cappa
Virpi Sinikka Niemelä
R. Amorín
J. Vásquez
NULL AUTHOR_ID
+ PDF Chat The first orbital solution for the massive colliding-wind binary HD 93162 (<i>≡</i>WR 25) 2006 R. Gamen
E. Gosset
N. Morrell
Virpi Sinikka Niemelä
H. Sana
Yaël Nazé
G. Rauw
R. H. Barbá
G. R. Solivella
+ PDF Chat Physical parameters of the O6.5V+B1V eclipsing binary system LS 1135 2006 E. Fernández Lajús
Virpi Sinikka Niemelä
+ PDF Chat Optical spectroscopy of X-Mega targets in the Carina nebula - VI. FO 15: a new O-type double-lined eclipsing binary 2006 Virpi Sinikka Niemelä
N. Morrell
E. Fernández Lajús
R. H. Barbá
J. F. Albacete-Colombo
M. Orellana
+ PDF Chat <i>Hubble Space Telescope</i>Imaging of the WR 38/WR 38a Cluster 2005 Debra J. Wallace
Douglas R. Gies
A. F. J. Moffat
Michael M. Shara
Virpi Sinikka Niemelä
+ Observing campaign of Eta Carinae from La Plata. Period 2003-2004 2005 E. Fernández Lajús
C. Fariña
R. Gamen
Claudio Llinares
N. Salerno
M. C. Schwartz
L. Simontacchi
A. Torres-Forné
Virpi Sinikka Niemelä
+ PDF Chat The nearest star of spectral type O3: a component of the multiple system HD 150136 2005 Virpi Sinikka Niemelä
R. Gamen
+ Optical CCD Observations of Eta Carinae at La Plata Observatory 2003 E. Fernández Lajús
R. Gamen
M. Schwartz
N. Salerno
Claudio Llinares
C. Fariña
R. Amorín
Virpi Sinikka Niemelä
+ PDF Chat LSS 1135: An O-type spectroscopic binary in the galactic OB association Bochum 7 2003 M. Corti
Virpi Sinikka Niemelä
N. Morrell
+ Optical CCD Observations of Eta Carinae at La Plata Observatory 2003 E. Fernández Lajús
R. Gamen
M. Schwartz
N. Salerno
Claudio Llinares
C. Fariña
R. Amorín
Virpi Sinikka Niemelä
+ PDF Chat The orbit of the double-lined Wolf–Rayet binary HDE 318016 (=WR 98) 2002 R. Gamen
Virpi Sinikka Niemelä
+ PDF Chat An X‐Ray Investigation of the NGC 346 Field in the Small Magellanic Cloud I. The Luminous Blue Variable HD 5980 and the NGC 346 Cluster 2002 Yaël Nazé
J. Hartwell
I. R. Stevens
M. F. Corcoran
You‐Hua Chu
Gloria Koenigsberger
A. F. J. Moffat
Virpi Sinikka Niemelä
+ The Massive Wolf-Rayet Binary HDE318016 (=WR 98) 2002 R. Gamen
Virpi Sinikka Niemelä
+ PDF Chat The massive Wolf–Rayet binary SMC WR7 2002 Virpi Sinikka Niemelä
Philip Massey
G. Testor
S. Giménez Benítez
+ The Massive Wolf-Rayet Binary HDE318016 (=WR 98) 2002 R. Gamen
Virpi Sinikka Niemelä
+ PDF Chat Spatially Resolved STIS Spectra of WR + OB Binaries with Colliding Winds 2001 Sébastien Lépine
Debra J. Wallace
Michael M. Shara
A. F. J. Moffat
Virpi Sinikka Niemelä
+ PDF Chat Optical spectroscopy of X-Mega targets - II. The massive double-lined O-type binary HD 93205 2001 N. Morrell
R. H. Barbá
Virpi Sinikka Niemelä
M. Corti
J. F. Albacete-Colombo
G. Rauw
M. F. Corcoran
T. Morel
J. F. Bertrand
A. F. J. Moffat
+ PDF Chat Optical spectroscopy of X-Mega targets - I. CPD −59° 2635: a new double-lined O-type binary in the Carina Nebula 2001 J. F. Albacete-Colombo
N. Morrell
Virpi Sinikka Niemelä
M. F. Corcoran
+ PDF Chat The Highly Polarized Open Cluster Trumpler 27 2000 C. Feinstein
G. Baume
Rubén A. Vázquez
Virpi Sinikka Niemelä
Miguel Angel Cerruti
Common Coauthors
Commonly Cited References
Action Title Year Authors # of times referenced
+ η Carinae: Binarity Confirmed 2000 A. Damineli
A. Kaufer
B. Wolf
O. Stahl
Dalton F. Lopes
F. X. de Araújo
4
+ PDF Chat The 2003 shell event in η Carinae 2004 P. A. Whitelock
M. W. Feast
F. Marang
E. Breedt
4
+ PDF Chat A new calibration of stellar parameters of Galactic O stars 2005 F. Martins
D. Schaerer
D. J. Hillier
4
+ PDF Chat Millimeter-wave emission during the 2003 low excitation phase of<i>η</i>Carinae 2005 Z. Abraham
D. Falceta-Gonçalves
T. P. Dominici
L.-Å. Nyman
Ph. Durouchoux
Felipe McAuliffe
Anderson Caproni
V. Jatenco‐Pereira
4
+ PDF Chat CHORIZOS: A χ<sup>2</sup>Code for Parameterized Modeling and Characterization of Photometry and Spectrophotometry 2004 J. Maíz Apellániz
3
+ A Grid of Non‐LTE Line‐blanketed Model Atmospheres of O‐Type Stars 2003 T. Lanz
I. Hubený
3
+ Carinae's Brightness Variations Since 1998:<i>Hubble Space Telescope</i>Observations of the Central Star 2004 John C. Martin
M. D. Koppelman
3
+ PDF Chat Spectral Irradiance Calibration in the Infrared. XIV. The Absolute Calibration of 2MASS 2003 Martin Cohen
W. A. Wheaton
S. T. Megeath
2
+ PDF Chat WR 20a Is an Eclipsing Binary: Accurate Determination of Parameters for an Extremely Massive Wolf-Rayet System 2004 A. Z. Bonanos
K. Z. Stanek
A. Udalski
Ł. Wyrzykowski
K. Żebruń
M. Kubiak
M. K. Szymański
O. Szewczyk
G. Pietrzyński
I. Soszyński
2
+ PDF Chat A Galactic O Star Catalog 2004 J. Maíz Apellániz
N. R. Walborn
Héctor Álvaro Galué
Lisa H. Wei
2
+ PDF Chat Classification of O Stars in the Yellow-Green: The Exciting Star VES 735 1999 C. R. Kerton
D. R. Ballantyne
P. G. Martin
2
+ A Computational Guide to Physics of Eclipsing Binaries. I. Demonstrations and Perspectives 2005 A. Prša
T. Zwitter
2
+ PDF Chat A multispectral view of the periodic events in η Carinae 2008 A. Damineli
D. J. Hillier
M. F. Corcoran
O. Stahl
J. H. Groh
J. I. Arias
M. Teodoro
N. Morrell
R. Gamen
F. González
2
+ PDF Chat Database of Geneva stellar evolution tracks and isochrones for (UBV)$_{\mathsf{J}}$(RI)$_{\mathsf{C}}$ JHKLL'M, HST-WFPC2, Geneva and Washington photometric systems 2001 Thierry Lejeune
D. Schaerer
2
+ PDF Chat The periodicity of the η Carinae events 2008 A. Damineli
D. J. Hillier
M. F. Corcoran
O. Stahl
R. S. Levenhagen
N. V. Leister
J. H. Groh
M. Teodoro
J. F. Albacete-Colombo
F. González
2
+ PDF Chat The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turnoffs. II. Results from 12 Galactic Clusters and OB Associations 2001 Philip Massey
K. DeGioia‐Eastwood
Elizabeth Waterhouse
2
+ PDF Chat LSS 1135: An O-type spectroscopic binary in the galactic OB association Bochum 7 2003 M. Corti
Virpi Sinikka Niemelä
N. Morrell
2
+ PDF Chat WR 20a: A massive cornerstone binary system comprising two extreme early-type stars 2004 G. Rauw
M. De Becker
Yaël Nazé
P. A. Crowther
E. Gosset
H. Sana
K. A. van der Hucht
J. M. Vreux
P. M. Williams
2
+ The AAO/UKST SuperCOSMOS Hα survey 2005 Q. A. Parker
S. Phillipps
Mark J. Pierce
M. Hartley
N. C. Hambly
M. A. Read
H. T. MacGillivray
S. B. Tritton
C. P. Cass
R. D. Cannon
1
+ PDF Chat Do Most Planetary Nebulae Derive from Binaries? I. Population Synthesis Model of the Galactic Planetary Nebula Population Produced by Single Stars and Binaries 2006 Maxwell Moe
Orsola De Marco
1
+ PDF Chat A spectroscopic survey of WNL stars in the Large Magellanic Cloud: general properties and binary status 2008 O. Schnurr
A. F. J. Moffat
N. St‐Louis
N. Morrell
M. A. Guerrero
1
+ PDF Chat The conspicuous absence of X-ray emission from carbon-enriched Wolf-Rayet stars 2003 L. M. Oskinova
R. Ignace
W.‐R. Hamann
A. M. T. Pollock
J. C. Brown
1
+ PDF Chat The Southern Galactic Plane Survey: H <scp>i</scp> Observations and Analysis 2005 N. M. McClure‐Griffiths
J. M. Dickey
B. M. Gaensler
A. J. Green
M. Haverkorn
S. Strasser
1
+ PDF Chat η Carinae across the 2003.5 Minimum: Spectroscopic Evidence for Massive Binary Interactions 2007 K. E. Nielsen
M. F. Corcoran
T. R. Gull
D. J. Hillier
Kenji Hamaguchi
S. Ivarsson
Don J. Lindler
1
+ PDF Chat O stars with weak winds: the Galactic case 2005 F. Martins
D. Schaerer
D. J. Hillier
F. Meynadier
Mohammad Heydari
N. R. Walborn
1
+ PDF Chat An upper limit to the masses of stars 2005 Donald F. Figer
1
+ PDF Chat Angular dimensions of planetary nebulae 2003 R. Tylenda
N. Siódmiak
S. K. Górny
R. L. M. Corradi
Hugo E. Schwarz
1
+ PDF Chat On the He<scp>ii</scp>Emission in η Carinae and the Origin of Its Spectroscopic Events 2006 John C. Martin
Kris Davidson
R. M. Humphreys
D. J. Hillier
K. Ishibashi
1
+ PDF Chat WR 146 -- observing the OB-type companion 2000 Sarah Mi Ra Dougherty
P. M. Williams
D. Pollacco
1
+ PDF Chat [ITAL]Far Ultraviolet Spectroscopic Explorer[/ITAL] Observations of a Supernova Remnant in the Line of Sight to HD 5980 in the Small Magellanic Cloud 2001 Charles G. Hoopes
Kenneth R. Sembach
J. Christopher Howk
William P. Blair
1
+ PDF Chat Mitigating Charge Transfer Inefficiency in the [ITAL]Chandra X-Ray Observatory[/ITAL] Advanced CCD Imaging Spectrometer 2000 Leisa K. Townsley
Patrick S. Broos
G. P. Garmire
J. A. Nousek
1
+ PDF Chat Variability of<i>η</i>Carinae - III 2001 M. W. Feast
P. A. Whitelock
F. Marang
1
+ PDF Chat ROSAT HRI catalogue of X-ray sources in the SMC region 2000 M. Sasaki
F. Haberl
W. Pietsch
1
+ PDF Chat The very massive binary NGC 3603-A1 2008 O. Schnurr
Jules Casoli
André-Nicolas Chené
A. F. J. Moffat
N. St‐Louis
1
+ PDF Chat High velocity structures in, and the X-ray emission from the LBV nebula around<i>η</i>Carinae 2001 K. Weis
W. J. Duschl
D. J. Bomans
1
+ PDF Chat Chemical compositions and plasma parameters of planetary nebulae with Wolf-Rayet and wels type central stars 2006 P. Girard
J. Köppen
A. Acker
1
+ PDF Chat Star clusterings in the Carina complex: $\vec{UBVRI}$ photometry of NGC 3324 and Loden 165 2001 G. Carraro
F. Patat
Holger Baumgardt
1
+ PDF Chat In hot pursuit of the hidden companion of<i>η</i> Carinae: An X-ray determination of the wind parameters 2002 J. M. Pittard
M. F. Corcoran
1
+ PDF Chat Direct measurement of the size and shape of the present-day stellar wind of<i>η</i> Carinae 2003 R. van Boekel
P. Kervella
M. Schöller
Tom Herbst
W. Brandner
A. de Koter
L. B. F. M. Waters
D. J. Hillier
Francesco Paresce
R. Lenzen
1
+ PDF Chat A Change in the Physical State of η Carinae? 2005 Kris Davidson
John C. Martin
R. M. Humphreys
K. Ishibashi
T. R. Gull
O. Stahl
K. Weis
D. J. Hillier
A. Damineli
M. F. Corcoran
1
+ PDF Chat A Recalibration of Optical Photometry: Tycho-2, Strömgren, and Johnson Systems 2006 J. Maíz Apellániz
1
+ PDF Chat Optical spectroscopy of X-Mega targets - I. CPD −59° 2635: a new double-lined O-type binary in the Carina Nebula 2001 J. F. Albacete-Colombo
N. Morrell
Virpi Sinikka Niemelä
M. F. Corcoran
1
+ The Photometric Performance and Calibration of the<i>Hubble Space Telescope</i>Advanced Camera for Surveys 2005 M. Sirianni
M. James Jee
N. Benı́tez
John P. Blakeslee
A. R. Martel
G. R. Meurer
Mark Clampin
Guido De Marchi
H. C. Ford
Ronald L. Gilliland
1
+ PDF Chat Correcting for the Effects of Interstellar Extinction 1999 E. L. Fitzpatrick
1
+ PDF Chat The first orbital solution for the massive colliding-wind binary HD 93162 (<i>≡</i>WR 25) 2006 R. Gamen
E. Gosset
N. Morrell
Virpi Sinikka Niemelä
H. Sana
Yaël Nazé
G. Rauw
R. H. Barbá
G. R. Solivella
1
+ PDF Chat Magellanic Cloud X-Ray Sources. III. Completion of a [ITAL]ROSAT[/ITAL] Survey 1999 P. C. Schmidtke
A. P. Cowley
Jeffrey D. Crane
V. A. Taylor
T. K. McGrath
J. B. Hutchings
D. Crampton
1
+ PDF Chat Dynamical Expansion of Ionization and Dissociation Fronts around a Massive Star. I. A Mode of Triggered Star Formation 2005 Takashi Hosokawa
Shu‐ichiro Inutsuka
1
+ PDF Chat An<i>XMM-Newton</i>view of the young open cluster NGC 6231 - II. The OB star population 2006 H. Sana
G. Rauw
Yaël Nazé
E. Gosset
J. M. Vreux
1
+ PDF Chat <i>Chandra</i>Study of Young Stellar Objects in the NGC 1333 Star‐forming Cloud 2002 Konstantin V. Getman
Eric D. Feigelson
Leisa K. Townsley
John Bally
C. J. Lada
Bo Reipurth
1
+ The Milky Way in Molecular Clouds: A New Complete CO Survey 2001 T. M. Dame
Dap Hartmann
P. Thaddeus
1