Dr. Walter Seifert
Landessternwarte
Phone
Office
Happellabor, Room 019
Postal Address
Zentrum für Astronomie der Universität Heidelberg
Landessternwarte
Königstuhl 12
69117 Heidelberg
Landessternwarte
Königstuhl 12
69117 Heidelberg
36.
1/2025
Cifuentes, C.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs: IX. Multiplicity from close spectroscopic binaries to ultra-wide systems
A&A 693, A228(2025)
Cifuentes, C.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs: IX. Multiplicity from close spectroscopic binaries to ultra-wide systems
A&A 693, A228(2025)
35.
12/2024
Cortés-Contreras, M.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs: VIII. Kinematics in the solar neighbourhood
A&A 692, A206(2024)
Cortés-Contreras, M.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs: VIII. Kinematics in the solar neighbourhood
A&A 692, A206(2024)
34.
4/2024
Shan, Y.; Revilla, D. et al. (inc. Seifert, W.; Kemmer, J.; Quirrenbach, A.)
CARMENES input catalog of M dwarfs. VII. New rotation periods for the survey stars and their correlations with stellar activity
A&A 684, A9(2024)
Shan, Y.; Revilla, D. et al. (inc. Seifert, W.; Kemmer, J.; Quirrenbach, A.)
CARMENES input catalog of M dwarfs. VII. New rotation periods for the survey stars and their correlations with stellar activity
A&A 684, A9(2024)
33.
12/2023
Schey, L.; Heidt, J. et al. (inc. Quirrenbach, A.; Seifert, W.; Pramskiy, A.)
Decomposition of the central structure of NGC 2273 in the NIR: A case study
AN 344, 30094(2023)
Schey, L.; Heidt, J. et al. (inc. Quirrenbach, A.; Seifert, W.; Pramskiy, A.)
Decomposition of the central structure of NGC 2273 in the NIR: A case study
AN 344, 30094(2023)
32.
10/2023
Fuhrmeister, B.; Czesla, S. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Behaviour of the Paschen lines during flares and quiescence
A&A 678, A1(2023)
Fuhrmeister, B.; Czesla, S. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Behaviour of the Paschen lines during flares and quiescence
A&A 678, A1(2023)
31.
2/2023
Calcines, Ariadna; Wells, Martyn et al. (inc. Seifert, Walter)
Design of the VLT-CUBES image slicers:
ExA 55, 267(2023)
Calcines, Ariadna; Wells, Martyn et al. (inc. Seifert, Walter)
Design of the VLT-CUBES image slicers:
ExA 55, 267(2023)
30.
2/2023
Zanutta, Alessio; Cristiani, Stefano et al. (inc. Stilz, Ingo; Stürmer, Julian; Seifert, Walter; Rothmaier, Florian; Quirrenbach, Andreas; Molaverdikhani, Karan; Feiz, Carmen)
CUBES phase a design overview
ExA 55, 241(2023)
Zanutta, Alessio; Cristiani, Stefano et al. (inc. Stilz, Ingo; Stürmer, Julian; Seifert, Walter; Rothmaier, Florian; Quirrenbach, Andreas; Molaverdikhani, Karan; Feiz, Carmen)
CUBES phase a design overview
ExA 55, 241(2023)
29.
2/2023
Ribas, I.; Reiners, A. et al. (inc. Stürmer, J.; Stock, S.; Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Molaverdikhani, K.; Khalafinejad, S.; Kemmer, J.; Kaminski, A.; Bluhm, P.; Quirrenbach, A.; Sabotta, S.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. Guaranteed time observations Data Release 1 (2016-2020)
A&A 670, A139(2023)
Ribas, I.; Reiners, A. et al. (inc. Stürmer, J.; Stock, S.; Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Molaverdikhani, K.; Khalafinejad, S.; Kemmer, J.; Kaminski, A.; Bluhm, P.; Quirrenbach, A.; Sabotta, S.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. Guaranteed time observations Data Release 1 (2016-2020)
A&A 670, A139(2023)
28.
8/2021
Perdelwitz, V.; Mittag, M. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalog of M dwarfs. VI. A time-resolved Ca II H&K catalog from archival data
A&A 652, A116(2021)
Perdelwitz, V.; Mittag, M. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalog of M dwarfs. VI. A time-resolved Ca II H&K catalog from archival data
A&A 652, A116(2021)
27.
10/2020
Cifuentes, C.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs. V. Luminosities, colours, and spectral energy distributions
A&A 642, A115(2020)
Cifuentes, C.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs. V. Luminosities, colours, and spectral energy distributions
A&A 642, A115(2020)
26.
8/2020
Bauer, F. F.; Zechmeister, M. et al. (inc. Seifert, W.; Quirrenbach, A.; Stahl, O.; Kaminski, A.)
The CARMENES search for exoplanets around M dwarfs. Measuring precise radial velocities in the near infrared: The example of the super-Earth CD Cet b
A&A 640, A50(2020)
Bauer, F. F.; Zechmeister, M. et al. (inc. Seifert, W.; Quirrenbach, A.; Stahl, O.; Kaminski, A.)
The CARMENES search for exoplanets around M dwarfs. Measuring precise radial velocities in the near infrared: The example of the super-Earth CD Cet b
A&A 640, A50(2020)
25.
9/2019
Morales, J. C.; Mustill, A. J. et al. (inc. Wolthoff, V.; Wagner, K.; Veredas, G.; Stürmer, J.; Stuber, T.; Stock, S.; Stahl, O.; Sadegi, S.; Mandel, H.; Labiche, N.; Klüter, J.; Kim, M.; Kemmer, J.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Reffert, S.)
A giant exoplanet orbiting a very-low-mass star challenges planet formation models
Sci 365, 1441(2019)
Morales, J. C.; Mustill, A. J. et al. (inc. Wolthoff, V.; Wagner, K.; Veredas, G.; Stürmer, J.; Stuber, T.; Stock, S.; Stahl, O.; Sadegi, S.; Mandel, H.; Labiche, N.; Klüter, J.; Kim, M.; Kemmer, J.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Reffert, S.)
A giant exoplanet orbiting a very-low-mass star challenges planet formation models
Sci 365, 1441(2019)
24.
8/2019
Heidt, J.; Quirrenbach, A. et al. (inc. Seifert, W.; Pramskiy, A.; Hoyer, N.)
3C 294 revisited: Deep Large Binocular Telescope AO NIR images and optical spectroscopy
A&A 628, A28(2019)
Heidt, J.; Quirrenbach, A. et al. (inc. Seifert, W.; Pramskiy, A.; Hoyer, N.)
A&A 628, A28(2019)
23.
7/2019
Zechmeister, M.; Dreizler, S. et al. (inc. Wolthoff, V.; Wagner, K.; Veredas, G.; Tala Pinto, M.; Stürmer, J.; Stuber, T.; Stock, S.; Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Mandel, H.; Magán Madinabeitia, H.; Klüter, J.; Kim, M.; Kemmer, J.; Kaminski, A.; Brinkmöller, M.; Bluhm, P.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden's Star
A&A 627, A49(2019)
Zechmeister, M.; Dreizler, S. et al. (inc. Wolthoff, V.; Wagner, K.; Veredas, G.; Tala Pinto, M.; Stürmer, J.; Stuber, T.; Stock, S.; Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Mandel, H.; Magán Madinabeitia, H.; Klüter, J.; Kim, M.; Kemmer, J.; Kaminski, A.; Brinkmöller, M.; Bluhm, P.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden's Star
A&A 627, A49(2019)
22.
5/2019
Schweitzer, A.; Passegger, V. M. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars
A&A 625, A68(2019)
Schweitzer, A.; Passegger, V. M. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars
A&A 625, A68(2019)
21.
3/2019
Hintz, D.; Fuhrmeister, B. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Chromospheric modeling of M 2-3 V stars with PHOENIX
A&A 623, A136(2019)
Hintz, D.; Fuhrmeister, B. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Chromospheric modeling of M 2-3 V stars with PHOENIX
A&A 623, A136(2019)
20.
1/2019
Díez Alonso, E.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs. IV. New rotation periods from photometric time series
A&A 621, A126(2019)
Díez Alonso, E.; Caballero, J. A. et al. (inc. Seifert, W.; Quirrenbach, A.)
CARMENES input catalogue of M dwarfs. IV. New rotation periods from photometric time series
A&A 621, A126(2019)
19.
12/2018
Salz, M.; Czesla, S. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
Detection of He I λ10830 Å absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy
A&A 620, A97(2018)
Salz, M.; Czesla, S. et al. (inc. Seifert, W.; Kaminski, A.; Quirrenbach, A.)
Detection of He I λ10830 Å absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy
A&A 620, A97(2018)
18.
11/2018
Ribas, I.; Tuomi, M. et al. (inc. Tsapras, Y.; Seifert, W.; Reffert, S.; Kaminski, A.; Quirrenbach, A.)
A candidate super-Earth planet orbiting near the snow line of Barnard's star
Natur 563, 365(2018)
Ribas, I.; Tuomi, M. et al. (inc. Tsapras, Y.; Seifert, W.; Reffert, S.; Kaminski, A.; Quirrenbach, A.)
A candidate super-Earth planet orbiting near the snow line of Barnard's star
Natur 563, 365(2018)
17.
11/2018
Baroch, D.; Morales, J. C. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Nine new double-line spectroscopic binary stars
A&A 619, A32(2018)
Baroch, D.; Morales, J. C. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Nine new double-line spectroscopic binary stars
A&A 619, A32(2018)
16.
10/2018
Kaminski, A.; Trifonov, T. et al. (inc. Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Mandel, H.; Luque, R.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. A Neptune-mass planet traversing the habitable zone around HD 180617
A&A 618, A115(2018)
Kaminski, A.; Trifonov, T. et al. (inc. Stahl, O.; Seifert, W.; Sadegi, S.; Reffert, S.; Mandel, H.; Luque, R.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. A Neptune-mass planet traversing the habitable zone around HD 180617
A&A 618, A115(2018)
15.
7/2018
Fuhrmeister, B.; Czesla, S. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Wing asymmetries of Hα, Na I D, and He I lines
A&A 615, A14(2018)
Fuhrmeister, B.; Czesla, S. et al. (inc. Seifert, W.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Wing asymmetries of Hα, Na I D, and He I lines
A&A 615, A14(2018)
14.
7/2018
Passegger, V. M.; Reiners, A. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy
A&A 615, A6(2018)
Passegger, V. M.; Reiners, A. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy
A&A 615, A6(2018)
13.
6/2018
Tal-Or, L.; Zechmeister, M. et al. (inc. Seifert, W.; Sadegi, S.; Reffert, S.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Radial-velocity variations of active stars in visual-channel spectra
A&A 614, A122(2018)
Tal-Or, L.; Zechmeister, M. et al. (inc. Seifert, W.; Sadegi, S.; Reffert, S.; Quirrenbach, A.)
The CARMENES search for exoplanets around M dwarfs. Radial-velocity variations of active stars in visual-channel spectra
A&A 614, A122(2018)
12.
4/2018
Reiners, A.; Zechmeister, M. et al. (inc. Xu, W.; Wolthoff, V.; Wagner, K.; Veredas, G.; Tala, M.; Stürmer, J.; Stahl, O.; Sadegi, S.; Reffert, S.; Mandel, H.; Klüter, J.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars
A&A 612, A49(2018)
Reiners, A.; Zechmeister, M. et al. (inc. Xu, W.; Wolthoff, V.; Wagner, K.; Veredas, G.; Tala, M.; Stürmer, J.; Stahl, O.; Sadegi, S.; Reffert, S.; Mandel, H.; Klüter, J.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. High-resolution optical and near-infrared spectroscopy of 324 survey stars
A&A 612, A49(2018)
11.
2/2018
Reiners, A.; Ribas, I. et al. (inc. Wolthoff, V.; Wagner, K.; Tala, M.; Stürmer, J.; Stahl, O.; Sadegi, S.; Reffert, S.; Mandel, H.; Klüter, J.; Kim, M.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf
A&A 609, L5(2018)
Reiners, A.; Ribas, I. et al. (inc. Wolthoff, V.; Wagner, K.; Tala, M.; Stürmer, J.; Stahl, O.; Sadegi, S.; Reffert, S.; Mandel, H.; Klüter, J.; Kim, M.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Seifert, W.; Kaminski, A.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs. HD147379 b: A nearby Neptune in the temperate zone of an early-M dwarf
A&A 609, L5(2018)
10.
2/2018
Trifonov, T.; Kürster, M. et al. (inc. Wolthoff, V.; Wagner, K.; Tala, M.; Stahl, O.; Sadegi, S.; Mandel, H.; Klüter, J.; Kim, M.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Stürmer, J.; Seifert, W.; Kaminski, A.; Reffert, S.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs . First visual-channel radial-velocity measurements and orbital parameter updates of seven M-dwarf planetary systems
A&A 609, A117(2018)
Trifonov, T.; Kürster, M. et al. (inc. Wolthoff, V.; Wagner, K.; Tala, M.; Stahl, O.; Sadegi, S.; Mandel, H.; Klüter, J.; Kim, M.; Grohnert, S.; Feiz, C.; Brinkmöller, M.; Stürmer, J.; Seifert, W.; Kaminski, A.; Reffert, S.; Quirrenbach, A.; Caballero, J. A.)
The CARMENES search for exoplanets around M dwarfs . First visual-channel radial-velocity measurements and orbital parameter updates of seven M-dwarf planetary systems
A&A 609, A117(2018)
9.
1/2018
Zechmeister, M.; Reiners, A. et al. (inc. Wolthoff, V.; Seifert, W.; Reffert, S.; Quirrenbach, A.; Kaminski, A.)
Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators
A&A 609, A12(2018)
Zechmeister, M.; Reiners, A. et al. (inc. Wolthoff, V.; Seifert, W.; Reffert, S.; Quirrenbach, A.; Kaminski, A.)
Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators
A&A 609, A12(2018)
8.
8/2017
Garcia-Piquer, A.; Morales, J. C. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
Efficient scheduling of astronomical observations. Application to the CARMENES radial-velocity survey
A&A 604, A87(2017)
Garcia-Piquer, A.; Morales, J. C. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
Efficient scheduling of astronomical observations. Application to the CARMENES radial-velocity survey
A&A 604, A87(2017)
7.
1/2017
Cortés-Contreras, M.; Béjar, V. J. S. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
CARMENES input catalogue of M dwarfs. II. High-resolution imaging with FastCam
A&A 597, A47(2017)
Cortés-Contreras, M.; Béjar, V. J. S. et al. (inc. Seifert, W.; Quirrenbach, A.; Caballero, J. A.)
CARMENES input catalogue of M dwarfs. II. High-resolution imaging with FastCam
A&A 597, A47(2017)
6.
9/2015
Hansen, C. J.; Ludwig, H. -G. et al. (inc. Christlieb, N.; Koch, A.; Seifert, W.)
Stellar science from a blue wavelength range. A possible design for the blue arm of 4MOST
AN 336, 665(2015)
Hansen, C. J.; Ludwig, H. -G. et al. (inc. Christlieb, N.; Koch, A.; Seifert, W.)
Stellar science from a blue wavelength range. A possible design for the blue arm of 4MOST
AN 336, 665(2015)
5.
1/2012
Bik, A.; Henning, Th. et al. (inc. Seifert, W.; Pasquali, A.)
Age Spread in W3 Main: Large Binocular Telescope/LUCI Near-infrared Spectroscopy of the Massive Stellar Content
ApJ 744, 87(2012)
Bik, A.; Henning, Th. et al. (inc. Seifert, W.; Pasquali, A.)
Age Spread in W3 Main: Large Binocular Telescope/LUCI Near-infrared Spectroscopy of the Massive Stellar Content
ApJ 744, 87(2012)
4.
12/2011
Assef, R. J.; Denney, K. D. et al. (inc. Seifert, W.; Quirrenbach, A.; Mueller, P.; Mandel, H.; Germeroth, A.; Feiz, C.)
Black Hole Mass Estimates Based on C IV are Consistent with Those Based on the Balmer Lines
ApJ 742, 93(2011)
Assef, R. J.; Denney, K. D. et al. (inc. Seifert, W.; Quirrenbach, A.; Mueller, P.; Mandel, H.; Germeroth, A.; Feiz, C.)
Black Hole Mass Estimates Based on C IV are Consistent with Those Based on the Balmer Lines
ApJ 742, 93(2011)
3.
3/2011
Fuhrmann, K.; Chini, R. et al. (inc. Stahl, O.; Seifert, W.)
BESO échelle spectroscopy of solar-type stars at Cerro Armazones
MNRAS 411, 2311(2011)
Fuhrmann, K.; Chini, R. et al. (inc. Stahl, O.; Seifert, W.)
BESO échelle spectroscopy of solar-type stars at Cerro Armazones
MNRAS 411, 2311(2011)
2.
12/2010
Bian, Fuyan; Fan, Xiaohui et al. (inc. Seifert, Walter)
LBT/LUCIFER Observations of the z ~ 2 Lensed Galaxy J0900+2234
ApJ 725, 1877(2010)
Bian, Fuyan; Fan, Xiaohui et al. (inc. Seifert, Walter)
LBT/LUCIFER Observations of the z ~ 2 Lensed Galaxy J0900+2234
ApJ 725, 1877(2010)
1.
8/2006
Tapken, C.; Appenzeller, I. et al. (inc. Seifert, W.; Heidt, J.)
Lyα emission galaxies at a redshift of z ≈ 5.7 in the FORS deep field
A&A 455, 145(2006)
Tapken, C.; Appenzeller, I. et al. (inc. Seifert, W.; Heidt, J.)
Lyα emission galaxies at a redshift of z ≈ 5.7 in the FORS deep field
A&A 455, 145(2006)
