Per Rex Christensen

Per Rex Christensen

Associate Professor emeritus

ORCID: 0000-0003-4213-1300

Publication year:
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1 - 50 out of 134Page size: 50
  1. 2009
  2. Published

    CMB polarization map derived from the WMAP 5 year data through harmonic internal linear combination

    Kim, J., Nasselski, Pavel & Christensen, Per Rex, 2009, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 79, 2, p. 023003

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. 2010
  4. Published

    Planck pre-launch status: The optical system

    Tauber, J. A. [. A. ]., Nørgaard-Nielsen, H. U., Christensen, Per Rex, Ade, P. A. R., Jessen, N. & Nasselski, Pavel, 2010, In: Astronomy & Astrophysics. 520, p. A2 22 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Understanding the WMAP cold spot mystery

    Nasselski, Pavel, Christensen, Per Rex, Coles, P., Verkhodanov, O., Novikov, I. D. & Kim, J., 1 Feb 2010, In: Astrophysical Bulletin. 65, 2, p. 101-120 20 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Confronting theory with observations: A UniverseNet Cosmology Workshop, August 16-20

    Bergström... [et al.], L., Bjerrum-Bohr, Emil, Butt, S., Christensen, Per Rex, Damgaard, Poul Henrik, Collins, H. S., Fynbo, Johan Peter Uldall, Geier, S. J., Hansen, Steen Harle, James, J. B., Kim, J., Li, X., Man, W. S., Nasselski, Pavel, Nesseris, S. & Olesen, Poul, 16 Jul 2010, København

    Research output: Other contribution › Research

  7. Published

    Planck pre-launch status: the Planck mission

    Tauber...[et al.], J. A., Christensen, Per Rex & Nasselski, Pavel, 15 Sep 2010, In: Astronomy & Astrophysics. 520, p. A1 22 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. 2011
  9. Published

    Planck early results. II. The thermal performance of Planck

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A2

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Planck early results. IX. XMM-Newton follow-up for validation of Planck cluster candidates

    Aghanim...[et al.], N., Arnaud, M., Ashdown, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A9

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Planck early results. VII. The Early Release Compact Source Catalogue

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A7

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Planck early results. VIII. The all-sky early Sunyaev-Zeldovich cluster sample

    Ade..[et al.], P., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A8

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Planck early results. X. Statistical analysis of Sunyaev-Zeldovich scaling relations for X-ray galaxy clusters

    Aghanim..[et al., N., Arnaud, M., Ashdown, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A10

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Planck early results. XI. Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex, Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A11

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    Planck early results. XII. Cluster Sunyaev-Zeldovich optical scaling relations

    Aghanim...[et al.], N., Arnaud, M., Ashdown, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A12

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue

    Ade...[et al.], P. A. R., Aghanim, N., Argueeso, F., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A13

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Planck early results. XIV. ERCSC validation and extreme radio sources

    Ade...[et al.], P., Aghanim, N., Angelaskis, E., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A14

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Planck early results. XIX. All-sky temperature and dust optical depth from Planck and IRAS. Constraints on the "dark gas" in our Galaxy

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A19

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources

    Aatrokoski...[et al.], J., Ade, P. A. R., Aghanim, N., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A15

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Planck early results. XVI. The Planck view of nearby galaxies

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A16

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Planck early results. XVII. Origin of the submillimetre excess dust emission in the Magellanic Clouds

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A17

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Planck early results. XVIII. The power spectrum of cosmic infrared background anisotropies

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A18

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Planck early results. XX. New light on anomalous microwave emission from spinning dust grains

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A20

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Planck early results. XXI. Properties of the interstellar medium in the Galactic plane

    Abergel...[et al.], A., Ade, P. A. R., Aghanim, N., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A21

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Planck early results. XXII. The submillimetre properties of a sample of Galactic cold clumps

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A22

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    Planck early results. XXIII. The first all-sky survey of Galactic cold clumps

    Ade...[et al.], P. A. R., Aghanim, N., Arnaud, M., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A23

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Planck early results. XXIV. Dust in the diffuse interstellar medium and the Galactic halo

    Abergal..[et al.], A., Ade, P. A. R., Aghanim, A., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A24

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    Planck early results. XXV. Thermal dust in nearby molecular clouds

    Abergel...[et al.], A., Ade, P. A. R., Aghaim, N., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A25

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Planck early results. XXVI. Detection with Planck and confirmation by XMM-Newton of PLCK G266.6-27.3, an exceptionally X-ray luminous and massive galaxy cluster at z similar to 1

    Aghanim...[et al.], N., Arnaud, M., Ashdown, W., Christensen, Per Rex & Nasselski, Pavel, 1 Dec 2011, In: Astronomy & Astrophysics. 536, p. A26

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. 2012
  31. Published

    Planck intermediate results I. Further validation of new Planck clusters with XMM-Newton

    Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Hornstrup, A., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Balbi, A., Christensen, Per Rex, Banday, A. J. & Nasselski, Pavel, 5 Jul 2012, In: Astronomy & Astrophysics. 543, p. A102 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Morphology of high-multiplicity events in heavy ion collisions

    Nasselski, Pavel, rtc312, rtc312, Christensen, Per Rex, Damgaard, Poul Henrik, Frejsel, A. M., Gaardhøje, Jens Jørgen, Kim, J., Hansen, A. C., Hansen, M. A. K., Verkhodanov, O., Wiedemann, U. A. & Christensen, Per Rex, 30 Aug 2012, In: Physical Review C (Nuclear Physics). 86, 2, p. 024916 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Planck early results. I. The Planck mission

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Christensen, Per Rex, Nasselski, Pavel, Baccigalupi, C., Baker, M., Balbi, A., Banday, A. J. & Barreiro, R. B., 1 Dec 2012, In: Astronomy & Astrophysics. 536, p. A1

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. 2013
  35. Published

    Planck intermediate results II. Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Balbi, A., Banday, A. J., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A128.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Planck intermediate results IV. The XMM-Newton validation programme for new Planck galaxy clusters

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Balbi, A., Banday, A., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A130.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Planck intermediate results V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A131.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Planck intermediate results VI. The dynamical structure of PLCKG214.6+37.0, a Planck discovered triple system of galaxy clusters

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A132.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Planck intermediate results VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHz

    Ade, P. A. R., Aghanim, N., Argueeso, F., Arnaud, M., Ashdown, M., Christensen, Per Rex, Noergaard-Nielsen, H. U., Nasselski, Pavel & Novikov, I. D., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A133.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Planck intermediate results VIII. Filaments between interacting clusters

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Feb 2013, In: Astronomy & Astrophysics. 550, A134.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Planck 2013 Results. XXIV. Constraints on primordial non-Gaussianity

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 20 Mar 2013, In: arXiv. 1303.5084, 56 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Planck 2013 results. XIX. The integrated Sachs-Wolfe effect

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 20 Mar 2013, In: arXiv. 1303.5079, 24 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Planck 2013 results. XVIII. Gravitational lensing-infrared background correlation

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 20 Mar 2013, In: arXiv. 1303.5078, 25 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Planck 2013 results. XXI. Cosmology with the all-sky Planck Compton parameter y-map

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 20 Mar 2013, In: arXiv. 1303.5081, 18 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Planck intermediate results IX. Detection of the Galactic haze with Planck

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Balbi, A., Banday, A. J., Barreiro, R. B., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Jun 2013, In: Astronomy & Astrophysics. 554, A139.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Planck intermediate results X. Physics of the hot gas in the Coma cluster

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Baccigalupi, C., Aumont, J., Balbi, A., Banday, A. J., Barreiro, R. B., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Jun 2013, In: Astronomy & Astrophysics. 554, A140.

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Planck intermediate results XI. The gas content of dark matter halos: the Sunyaev-Zeldovich-stellar mass relation for locally brightest galaxies

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Sep 2013, In: Astronomy & Astrophysics. 557, A52.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt system

    Ade, P. A. R., Aghanim, N., Alves, M. I. R., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Balbi, A., Christensen, Per Rex, Nasselski, Pavel & Novikov, I. D., 1 Sep 2013, In: Astronomy & Astrophysics. 557, A53.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. 2014
  50. Published

    Planck intermediate results. XIII. Constraints on peculiar velocities

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Artio-Barandela, F., Aumont, J., Aussel, H., Baccigalupi, C., Banday, A. J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 13 Jan 2014, In: Astronomy & Astrophysics. 561, 21 p., A97.

    Research output: Contribution to journal › Journal article › Research › peer-review

  51. Published

    Planck intermediate results. XIV. Dust emission at millimetre wavelengths in the Galactic plane

    Ade, P. A. R., Aghanim, N., Alves, M. I. R., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 4 Apr 2014, In: Astronomy & Astrophysics. 564, 13 p., A45.

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    Planck intermediate results. XV. A study of anomalous microwave emission in Galactic clouds

    Ade, P. A. R., Aghanim, N., Alves, M. I. R., Arnaud, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 20 May 2014, In: Astronomy & Astrophysics. 565, 28 p., A103.

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    Planck intermediate results .XVI. Profile likelihoods for cosmological parameters

    Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 11 Jun 2014, In: Astronomy & Astrophysics. 566, 10 p., A54.

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. Published

    Planck intermediate results. XVII. Emission of dust in the diffuse interstellar medium from the far-infrared to microwave frequencies

    Abergel, A., Ade, P. A. R., Aghanim, N., Alves, M. I. R., Aniano, G., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 11 Jun 2014, In: Astronomy & Astrophysics. 566, 23 p., A55.

    Research output: Contribution to journal › Journal article › Research › peer-review

  55. Published

    Planck 2013 results. XI. All-sky model of thermal dust emission

    Abergel, A., Ade, P. A. R., Aghanim, N., Alves, M. I. R., Aniano, G., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 29 Oct 2014, In: Astronomy & Astrophysics. 571, 37 p., A11.

    Research output: Contribution to journal › Journal article › Research › peer-review

  56. Published

    Planck 2013 results. I. Overview of products and scientific results

    Ade, P. A. R., Aghanim, N., Armitage-Caplan, C., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Christensen, Per Rex, Nasselski, Pavel, Novikov, I. D. & Nørgaard-Nielsen, H. U., 29 Oct 2014, In: Astronomy & Astrophysics. 571, 48 p., A1.

    Research output: Contribution to journal › Journal article › Research › peer-review

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