Binary sdB Stars with Massive Compact Companions (2008)
Geier, S., Karl, C., Edelmann, H., Heber, U., Napiwotzki, R.
The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis of subluminous B...
Binary sdB Stars with Massive Compact Companions. (2008)
Geier, S., Karl, C., Edelmann, H., Heber, U., Napiwotzki, R.
Original paper can be found at: http://astrosociety.org/pubs/cs/381.html Copyright ASP
Binary White Dwarfs in the Supernova Ia Progenitor Survey. (2007)
Napiwotzki, R., Karl, C., Nelemans, G., Yungelson, L., Christlieb, N., Drechsel, H., ...
Spectroscopic Analysis of Subluminous B Stars in Binaries with Compact Companions. (2007)
Geier, S., Karl, C., Edelmann, H., Heber, U., Napiwotzki, R.
Spectroscopic Analysis of subluminous B Stars in Binaries with compact Companions (2006)
Geier, S., Karl, C., Edelmann, H., Heber, U., Napiwotzki, R.
The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis of subluminous B...
Geier, S., Karl, C., Edelmann, H., Heber, U., Napiwotzki, R.
The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis of subluminous B...
Spectroscopic Analysis of sdB Binaries from the SPY Project (2005)
Karl, C., Heber, U., Napiwotzki, R., Geier, S.
In the course of our search for double degenerate binaries as potential progenitors of type Ia supernovae with the ESO VLT (ESO SN Ia Progenitor SurveY SPY) several new subdwarf B (sdB) binaries with...
High resolution spectroscopy of bright subdwarf B stars - I. Radial velocity variables (2005)
Edelmann, H., Heber, U., Altmann, M., Karl, C., Lisker, T.
Radial velocity curves for 15 bright subdwarf B binary systems have been measured using high precision radial velocity measurements from high S/N optical high-resolution spectra. In addition, two...
Binaries discovered by the SPY project. IV. Five single-lined DA double white dwarfs (2005)
Nelemans, G., Napiwotzki, R., Karl, C., Marsh, T. R., Voss, B., Roelofs, G., ...
We present results from our ongoing follow-up observations of double white dwarf binaries detected in the ESO SN Ia Progenitor SurveY (SPY). We discuss our observing strategy and data analysis and...
Rotation velocities of white dwarfs. III. DA stars with convective atmospheres (2005)
Karl, C., Napiwotzki, R., Heber, U., Dreizler, S., Koester, D., Reid, I.N.
Six detached white-dwarf close binaries (2005)
Morales-Rueda, L., Maxted, P.F.L., Nelemans, G., Karl, C., Napiwotzki, R., Moran, C.K.J., ...
Six detached white-dwarf close binaries (2005)
Morales-Rueda, L., Marsh, T. R., Maxted, P. F. L., Nelemans, G., Karl, C., Napiwotzki, R., ...
We determine the orbits of four double degenerate systems (DDs), composed of two white dwarfs, and of two white dwarf -- M dwarf binaries. The four DDs, WD1022+050, WD1428+373, WD1824+040, and...
Binaries discovered by the SPY project - IV. Five single-lined DA double white dwarfs (2005)
Nelemans, G., Napiwotzki, R., Karl, C., Marsh, T.R., Voss, B., Roelofs, G., ...
Binaries discovered by the SPY project IV. Five single-lined DA double white dwarfs. (2005)
Nelemans, G., Napiwotzki, R., Karl, C., Marsh, T.R., Voss, B., Roelofs, G., ...
The Mass of the sdB Primary of the Binary HS 2333+3927. (2005)
Heber, U., Drechsel, H., Karl, C., Ostensen, R., Folkes, S.L., Napiwotzki, R., ...
New Results from the Supernova Ia Progenitor Survey. (2005)
Napiwotzki, R., Karl, C., Nelemans, G., Yungelson, L., Christlieb, N., Drechsel, H., ...
Rotation Velocities of DA White Dwarfs with Convective Atmospheres. (2005)
Karl, C., Heber, U., Napiwotzki, R., Dreizler, S., Koester, D., Reid, I.N.
Rotation Velocities of DA White Dwarfs with Convective Atmospheres. (2005)
Karl, C., Heber, U., Napiwotzki, R., Dreizler, S., Koester, D., Reid, I.N.
Werner, K., Rauch, T., Napiwotzki, R., Christlieb, N., Reimers, D., Karl, C.
Original paper can be found at: http://astrosociety.org/pubs/cs/328.html Copyright ASP
HS 2333 3927: A new sdB dM binary with a large reflection effect (2004)
Heber, U., Drechsel, H., Ostensen, R., Karl, C., Napiwotzki, R., Altmann, M., ...
Close binary EHB stars from SPY (2004)
Napiwotzki, R., Karl, C., Lisker, T., Heber, U., Christlieb, N., Reimers, D., ...
Double degenerates and progenitors of supernovae type Ia (2004)
Napiwotzki, R., Yungelson, L., Nelemans, G., Marsh, T. R., Leibundgut, B., Renzini, A., ...
We report on systematic radial velocity surveys for white dwarf - white dwarf binaries (double degenerates - DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carried out at the VLT....
Close binary white dwarfs and supernovae IA (2004)
Christlieb , N., Drechsel , H., Heber , U., Homeier , D., Karl , C., Koester , D., ...
Informamos sobre el estado actual de los surveys" de velocidades radiales para binarias de enanas blancas (degeneradas dobles - DDs) incluyendo SPY (Exploración ESO de progenitoras de supernovas Ia)...
Double Degenerate and Progenitors of Supernovae Type Ia. (2004)
Napiwotzki, R., Yungelson, L., Nelemans, G., Marsh, T.R., Leibundgut, B., Renzini, A., ...
HS 2333 + 3927: a new sdB binary with a large reflection effect. (2004)
Karl, C., Heber, U., Drechsel, H., Napiwotzki, R., Altmann, M., Ostensen, R., ...
“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1023/B:ASTR.0000044334.98860.ab [Full text of this article is not available in the UHRA]
2MASS J0516288+260738: Discovery of the first eclipsing late K + Brown dwarf binary system (2003)
Schuh, S.L., Handler, G., Drechsel, H., Hauschildt, P., Dreizler, S., Medupe, R., ...
2MASSJ0516288+260738: Discovery of the first eclipsing late K + Brown dwarf system? (2003)
Schuh, S. L., Handler, G., Drechsel, H., Hauschildt, P. H., Dreizler, S., Medupe, R., ...
We report the discovery of a new eclipsing system less than one arcminute south of the pulsating DB white dwarf KUV 05134+2605. The object could be identified with the point source...
Status of the R&D activity on diamond particle detectors (2003)
Adam, W., Bellini, B., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., ...
Status of the R&D activity on diamond particle detectors (2003)
Adam, W., Bellini, B., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., ...
The development of diamond tracking detectors for the LHC (2003)
Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...
Chemical vapor deposition diamond has been discussed extensively as an alternate sensor material for use very close to the interaction region of the LHC where extreme radiation conditions exist....
Status ofthe R&D activity on diamond particle detectors (2003)
Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...
Chemical Vapor Deposited (CVD) polycrystalline diamond has been proposed as a radiation-hard alternative to silicon in the extreme radiation levels occurring close to the interaction region ofthe...
New results on diamond pixel sensors using ATLAS frontend electronics (2003)
Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...
Diamond is a promising sensor material for future collider experiments due to its radiation hardness. Diamond pixel sensors have been bump bonded to an ATLAS pixel readout chip using PbSn solder...
The development of diamond tracking detectors for the LHC (2003)
Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...
Chemical vapor deposition diamond has been discussed extensively as an alternate sensor material for use very close to the interaction region of the LHC where extreme radiation conditions exist....
Status ofthe R&D activity on diamond particle detectors (2003)
Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., ...
Chemical Vapor Deposited (CVD) polycrystalline diamond has been proposed as a radiation-hard alternative to silicon in the extreme radiation levels occurring close to the interaction region ofthe...
New results on diamond pixel sensors using ATLAS frontend electronics (2003)
Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...
Diamond is a promising sensor material for future collider experiments due to its radiation hardness. Diamond pixel sensors have been bump bonded to an ATLAS pixel readout chip using PbSn solder...
Search for double degenerate progenitors of supernovae type Ia with SPY (2002)
Napiwotzki, R., Christlieb, N., Drechsel, H., Heber, U., Homeier, D., ...
We report on a large survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (SN Ia Progenitor surveY - SPY). About 560...
Search for double degenerate progenitors of supernovae type Ia with SPY (2002)
Napiwotzki, R., Drechsel, H., Heber, U., Karl, C., Christlieb, N., ...
We report on a large survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY - SPY).
Double degenerates from the supernova Ia progenitor survey (SPY) (2002)
Karl, C., Napiwotzki, R., Heber, U., Lisker, T., Nelemans, G., Christlieb, N., ...
We report on follow-up observations of double degenerate (DD) white dwarfs from the Supernovae Ia Progenitor Survey (SPY). Orbital parameters of four systems, including a massive short period system,...
Search for progenitors of supnernovae type Ia with SPY (2002)
Napiwotzki, R., Christlieb, N., Drechsel, H., Heber, U., Homeier, D., ...
We have started a large survey for double degenerate (DD) binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY - SPY). About...
Binaries discovered by the SPY project. I. HE 1047-0436: A subdwarf B white dwarf syste (2001)
Napiwotzki, R., Edelmann, H., Heber, U., Karl, C., Drechsel, H., Pauli, E.M., ...
Binaries discovered by the SPY project I. HE 1047-0436: a subdwarf B + white dwarf system (2001)
Napiwotzki, R., Edelmann, H., Heber, U., Karl, C., Drechsel, H., ...
In the course of our search for double degenerate binaries as potential progenitors of type Ia supernovae with the UVES spectrograph at the ESO VLT (ESO SN Ia Progenitor surveY - SPY) we discovered...
Search for progenitors of supernovae type Ia with SPY (2001)
Napiwotzki, R., Christlieb, N., Drechsel, H., Heber, U., Homeier, D., ...
Search for progenitors of supernovae type Ia with SPY. (2001)
Napiwotzki, R., Christlieb, N., Drechsel, H., Hagen, H.J., Heber, U., Homeier, D., ...
‘The definitive version is available at www3.interscience.wiley.com .' Copyright WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim DOI: 10.1002/1521-3994(200112)322:5/63.0.CO;2-I [Full text of this...
Pulse height distribution and radiation tolerance of CVD diamond detectors (2000)
Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...
The paper reviews measurements of the radiation tolerance of CVD diamond for irradiation with 24 GeV/c protons, 300 MeV/c pions and 1 MeV neutrons. For proton and neutron irradiation, the measured...
Pulse height distribution and radiation tolerance of CVD diamond detectors (2000)
Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...
The paper reviews measurements of the radiation tolerance of CVD diamond for irradiation with 24 GeV/c protons, 300 MeV/c pions and 1 MeV neutrons. For proton and neutron irradiation, the measured...
CVD diamond pixel detectors for LHC experiments (1999)
Wedenig, R., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...
CVD diamond detectors for ionizing radiation (1999)
Friedl, M., Adam, W., Bauer, C., Berfermann, E., Bergonzo, P., Bogani, F., ...
In future HEP accelerators, such as the LHC (CERN), detectors and electronics in the vertex region of the experiments will suffer from extreme radiation. Thus radiation hardness is required for both...
Review of the development of diamond radiation sensors (1999)
Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...
Diamond radiation sensors produced by chemical vapour deposition are studied for the application as tracking detectors in high luminosity experiments. Sensors with a charge collection distance up to...
The first bump-bonded pixel detectors on CVD diamond (1999)
Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...
Diamond is a nearly ideal material for detecting ionising radiation. Its outstanding radiation hardness, fast charge collection and low leakage current allow it to be used in high radiation...
CVD diamond pixel detectors for LHC experiments (1999)
Wedenig, R., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...
CVD diamond detectors for ionizing radiation (1999)
Friedl, M., Adam, W., Bauer, C., Berfermann, E., Bergonzo, P., Bogani, F., ...
In future HEP accelerators, such as the LHC (CERN), detectors and electronics in the vertex region of the experiments will suffer from extreme radiation. Thus radiation hardness is required for both...
Review of the development of diamond radiation sensors (1999)
Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...
Diamond radiation sensors produced by chemical vapour deposition are studied for the application as tracking detectors in high luminosity experiments. Sensors with a charge collection distance up to...
The first bump-bonded pixel detectors on CVD diamond (1999)
Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...
Diamond is a nearly ideal material for detecting ionising radiation. Its outstanding radiation hardness, fast charge collection and low leakage current allow it to be used in high radiation...
Von Wolff, M., Classen-Linke, I., Heid, D., Krusche, C.A., Beier-Hellwig, K., Karl, C., ...
Tumour necrosis factor-α (TNF-α) is a pleiotropic cytokine synthesized throughout the female reproductive tract. Even though evidence has accumulated that supports its role in autocrine and...
Rebecca Anne Bates, Dr. Mari Ostendorf, Associate Professor, Dr. J. Robin Rohlicek, Vice President, ...
It takes a village to raise a child, it took a village to get this thesis done and written. Apologies for the length of the acknowledgments. Primary acknowledgments must go to Mari Ostendorf, my...