Ruprecht-Karls-Universität Heidelberg
Personnel

Prof. Dr. Björn Malte Schäfer

Astronomisches Rechen-Institut



Office
Philosophenweg 12, Room 212

Postal address
Zentrum für Astronomie der Universität Heidelberg
Astronomisches Rechen-Institut
Philosophenweg 12
69120 Heidelberg





Research interests
cosmology, cosmostatistics, gravity on large scales, dark energy, structure formation, relativity



Publications done at ZAH since 2007

37.
6/2018
Cuesta-Lazaro, Carolina; Quera-Bofarull, Arnau; Reischke, Robert; Schäfer, Björn Malte
Gravitational corrections to light propagation in a perturbed FLRW universe and corresponding weak-lensing spectra
MNRAS 477, 741(2018)

36.
5/2018
Tugendhat, Tim M.; Schäfer, Björn Malte
Angular ellipticity correlations in a composite alignment model for elliptical and spiral galaxies and inference from weak lensing
MNRAS 476, 3460(2018)

35.
2/2018
Piras, Davide; Joachimi, Benjamin et al. (inc. Schäfer, Björn Malte)
The mass dependence of dark matter halo alignments with large-scale structure
MNRAS 474, 1165(2018)

34.
2/2018
Reischke, Robert; Pace, Francesco; Meyer, Sven; Schäfer, Björn Malte
Shear and vorticity in the spherical collapse of dark matter haloes
MNRAS 473, 4558(2018)

33.
10/2017
Merkel, Philipp M.; Schäfer, Björn Malte
Imitating intrinsic alignments: a bias to the CMB lensing-galaxy shape cross-correlation power spectrum induced by the large-scale structure bispectrum
MNRAS 471, 2431(2017)

32.
9/2017
Schäfer, Björn Malte; Merkel, Philipp M.
Angular spectra of the intrinsic galaxy ellipticity field, their observability and their impact on lensing in tomographic surveys
MNRAS 470, 3453(2017)

31.
8/2017
Merkel, Philipp M.; Schäfer, Björn Malte
Parameter constraints from weak-lensing tomography of galaxy shapes and cosmic microwave background fluctuations
MNRAS 469, 2760(2017)

30.
4/2017
Pace, Francesco; Reischke, Robert; Meyer, Sven; Schäfer, Björn Malte
Effects of tidal gravitational fields in clustering dark energy models
MNRAS 466, 1839(2017)

29.
3/2017
Reischke, Robert; Kiessling, Alina; Schäfer, Björn Malte
Variations of cosmic large-scale structure covariance matrices across parameter space
MNRAS 465, 4016(2017)

28.
11/2016
Reischke, Robert; Pace, Francesco; Meyer, Sven; Schäfer, Björn Malte
Spherical collapse of dark matter haloes in tidal gravitational fields
MNRAS 463, 429(2016)

27.
9/2016
Planck Collaboration; Ade, P. A. R. et al. (inc. Schaefer, B. M.)
Planck 2015 results. XIV. Dark energy and modified gravity
A&A 594, A14(2016)

26.
8/2016
Schäfer, Björn Malte; Reischke, Robert
Describing variations of the Fisher-matrix across parameter space
MNRAS 460, 3398(2016)

25.
2/2016
Sellentin, Elena; Schäfer, Björn Malte
Non-Gaussian forecasts of weak lensing with and without priors
MNRAS 456, 1645(2016)

24.
2/2016
Majerotto, Elisabetta; Sapone, Domenico; Schäfer, Björn Malte
Combined constraints on deviations of dark energy from an ideal fluid from Euclid and Planck
MNRAS 456, 109(2016)

23.
1/2014
Grassi, Alessandra; Schäfer, Björn Malte
Detecting baryon acoustic oscillations by 3d weak lensing
MNRAS 437, 2632(2014)

22.
10/2013
Capranico, Federica; Merkel, Philipp M.; Schäfer, Björn Malte
Intrinsic ellipticity correlations of galaxies: models, likelihoods and interplay with weak lensing
MNRAS 435, 194(2013)

21.
9/2013
Merkel, Philipp M.; Schäfer, Björn Malte
Intrinsic alignments and 3d weak gravitational lensing
MNRAS 434, 1808(2013)

20.
5/2013
Delabrouille, J.; Betoule, M. et al. (inc. Schaefer, B.)
The pre-launch Planck Sky Model: a model of sky emission at submillimetre to centimetre wavelengths
A&A 553, A96(2013)

19.
5/2013
Merkel, Philipp M.; Schäfer, Björn Malte
Contributions to the non-linear integrated Sachs-Wolfe effect: Birkinshaw-Gull effect and gravitational self-energy density
MNRAS 431, 2433(2013)

18.
4/2013
Jürgens, Gero; Schäfer, Björn Malte
Cross-bispectra and trispectra of the non-linear integrated Sachs-Wolfe effect and the tracer galaxy density field
MNRAS 430, 797(2013)

17.
2/2013
Merkel, Philipp M.; Schäfer, Björn Malte
The interplay of CMB temperature lensing power reconstruction with primordial non-Gaussianity of local type
MNRAS 429, 444(2013)

16.
1/2013
Giahi, Aram; Schäfer, Björn Malte
Evolution of intrinsic ellipticity correlations due to peculiar motion
MNRAS 428, 1312(2013)

15.
12/2012
Melin, J. -B.; Aghanim, N. et al. (inc. Waizmann, J. C.; Schaefer, B. M.; Bartelmann, M.)
A comparison of algorithms for the construction of SZ cluster catalogues
A&A 548, A51(2012)

14.
11/2012
Bartelmann, M.; Viola, M.; Melchior, P.; Schäfer, B. M.
Calibration biases in measurements of weak lensing
A&A 547, A98(2012)

13.
10/2012
Jürgens, Gero; Schäfer, Björn Malte
Integrated Sachs-Wolfe tomography with orthogonal polynomials
MNRAS 425, 2589(2012)

12.
7/2012
Schäfer, Björn Malte; Heisenberg, Lavinia
Weak lensing tomography with orthogonal polynomials
MNRAS 423, 3445(2012)

11.
6/2012
Ayaita, Youness; Schäfer, Björn Malte et al.
Investigating clustering dark energy with 3D weak cosmic shear
MNRAS 422, 3056(2012)

10.
4/2012
Schäfer, Björn Malte; Merkel, Philipp M.
Galactic angular momenta and angular momentum couplings in the large-scale structure
MNRAS 421, 2751(2012)

9.
3/2012
Schäfer, Björn Malte; Grassi, Alessandra et al.
A weak lensing view on primordial non-Gaussianities
MNRAS 421, 797(2012)

8.
2/2012
Schäfer, Björn Malte; Heisenberg, Lavinia et al. (inc. Kalovidouris, Angelos F.)
On the validity of the Born approximation for weak cosmic flexions
MNRAS 420, 455(2012)

7.
10/2011
Heisenberg, Lavinia; Schäfer, Björn Malte; Bartelmann, Matthias
A study of relative velocity statistics in Lagrangian perturbation theory with PINOCCHIO
MNRAS 416, 3057(2011)

6.
9/2011
Schäfer, Björn Malte; Kalovidouris, Angelos Fotios; Heisenberg, Lavinia
Parameter estimation biases due to contributions from the Rees-Sciama effect to the integrated Sachs-Wolfe spectrum
MNRAS 416, 1302(2011)

5.
4/2011
Melchior, P.; Viola, M.; Schäfer, B. M.; Bartelmann, M.
Weak gravitational lensing with DEIMOS
MNRAS 412, 1552(2011)

4.
2/2011
Merkel, Philipp M.; Schäfer, Björn Malte
Gravitational lensing of the cosmic microwave background by non-linear structures
MNRAS 411, 1067(2011)

3.
8/2009
Schaefer, Bjoern Malte; Douspis, Marian et al.
Implications of bias evolution on measurements of the integrated Sachs-Wolfe effect: errors and biases in parameter estimation
MNRAS 397, 925(2009)

2.
7/2009
Caldera-Cabral, Gabriela; Maartens, Roy; Schaefer, Bjoern Malte
The growth of structure in interacting dark energy models
JCAP 07, 027(2009)

1.
4/2009
Hollenstein, Lukas; Sapone, Domenico et al. (inc. Schäfer, Björn Malte)
Constraints on early dark energy from CMB lensing and weak lensing tomography
JCAP 04, 012(2009)

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