Jan O. Stenflo
https://usi.to/9q8
Publications
Journal Article (33)
- Stenflo J. O. (2023) Cosmological Constant from Boundary Condition and Its Implications beyond the Standard Model, Universe, 9 (2). ISSN 2218-1997
- Stenflo J. O. (2020) Cosmological constant caused by observer-induced boundary condition, Journal of Physics Communications, 4 (10):105001
- Nagendra K. N. ., Sowmya K., Sampoorna M., Stenflo J. O., Anusha L. S. . (2020) Importance of Angle-dependent Partial Frequency Redistribution in Hyperfine Structure Transitions Under the Incomplete Paschen-Back Effect Regime, Astrophysical Journal, 898 (1):49
- Stenflo J. O. (2019) Origin of the cosmological constant, Astrophysics and Space Science, 364 (9):143
- Sampoorna M., Nagendra K., Sowmya K., Stenflo J. O., Anusha L. (2019) Polarized Line Formation in Arbitrary Strength Magnetic Fields: The Case of a Two-level Atom with Hyperfine Structure Splitting, Astrophysical Journal, 883 (2):188
- Bianda M., Berdyugina S., Gisler D., Ramelli R., Belluzzi L., Carlin E. S. ., Stenflo J. O., Berkefeld T. (2018) Spatial variations of the Sr i 4607 A scattering polarization peak, A&A, 614:A89
- Stenflo J. O. (2017) History of Solar Magnetic Fields Since George Ellery Hale, Space Science Reviews, 210:5-35
- Sampoorna M., Nagendra K. N. ., Stenflo J. O. (2017) Polarized Line Formation in Arbitrary Strength Magnetic Fields Angle-averaged and Angle-dependent Partial Frequency Redistribution, Astrophysical Journal, 844:97
- Stenflo J. O. (2016) Transition of the Sunspot Number from Zurich to Brussels in 1980: A Personal Perspective, Solar Physics, 291:2487-2492
- Stenflo J. O. (2015) FTS atlas of the Sun's spectrally resolved center-to-limb variation, Astronomy and Astrophysics, 573:A74
- Stenflo J. O. (2015) History of Solar Magnetic Fields Since George Ellery Hale, Space Science Reviews
- Stenflo J. O. (2015) Physics of Polarized Scattering at Multi-level Atomic Systems, Astrophysical Journal, 801:70
- Supriya H., Smitha H., Nagendra K., Stenflo J. O., Bianda M., Ramelli R., Ravindra B., Anusha L. (2014) Center-to-limb Observations and Modeling of the Ca I 4227 Å line, Astrophysical Journal, 793:42
- Sowmya K., Nagendra K., Sampoorna M., Stenflo J. O. (2014) Polarized Light Scattering with the Paschen-Back Effect, Level-crossing of Fine Structure States, and Partial Frequency Redistribution, Astrophysical Journal, 793:71
- Sowmya K., Nagendra K., Stenflo J. O., Sampoorna M. (2014) Polarized Scattering with Paschen-Back Effect, Hyperfine Structure, and Partial Frequency Redistribution in Magnetized Stellar Atmospheres, Astrophysical Journal, 786:150
- Smitha H., Nagendra K., Stenflo J. O., Bianda M., Ramelli R. (2014) The Quantum Interference Effects in the Sc II 4247 Å Line of the Second Solar Spectrum, Astrophysical Journal, 794 (1):30
- Stenflo J. O., Demidov M., Bianda M., Ramelli R. (2013) Calibration of the 6302/6301 Stokes V line ratio in terms of the 5250/5247 ratio, Astronomy and Astrophysics, 556 (113):A113
- Stenflo J. O. (2013) Horizontal or vertical magnetic fields on the quiet Sun. Angular distributions and their height variations, Astronomy and Astrophysics, 555:A132
- Sampoorna M., Nagendra K., Stenflo J. O. (2013) Line-interlocking Effects on Polarization in Spectral Lines by Rayleigh and Raman Scattering, Astrophysical Journal, 770:92
- Smitha H., Nagendra K., Stenflo J. O., Sampoorna M. (2013) Modeling the Quantum Interference Signatures of the Ba II D2 4554 Å Line in the Second Solar Spectrum, Astrophysical Journal, 768:163
- Stenflo J. O. (2013) Solar magnetic fields as revealed by Stokes polarimetry, Astronomy and Astrophysics Reviews, 21:66
- Smitha H., Nagendra K., Stenflo J. O., Bianda M., Sampoorna M., Ramelli R., Anusha L. (2012) J-state interference signatures in the second solar spectrum. Modeling the Cr i triplet at 5204-5208 Å, Astronomy and Astrophysics, 541:A24
- Anusha L., Nagendra K., Bianda M., Stenflo J. O., Holzreuter R., Sampoorna M., Frisch H., Ramelli R., Smitha H. (2011) Analysis of the Forward-scattering Hanle Effect in the Ca I 4227 Å Line, Astrophysical Journal, 737:95
- Bianda M., Ramelli R., Anusha L., Stenflo J. O., Nagendra K., Holzreuter R., Sampoorna M., Frisch H., Smitha H. (2011) Observations of the forward scattering Hanle Effect the Ca I 4227 Å Line, Astronomy and Astrophysics, 530:L13
- Anusha L., Nagendra K., Stenflo J. O., Bianda M., Sampoorna M., Frisch H., Holzreuter R., Ramelli R. (2010) Generalization of the Last Scattering Approximation for the Second Solar Spectrum Modeling: The Ca I 4227 Å Line as a Case Study, Astrophysical Journal, 718:988-1000
- Sampoorna M., Stenflo J. O., Nagendra K., Bianda M., Ramelli R., Anusha L. (2009) Origin of Spatial Variations of Scattering Polarization in the Wings of the Ca I 4227 Å line, Astrophysical Journal, 699:1650-1659
- Berdyugina S., Fluri D., Ramelli R., Bianda M., Gisler D., Stenflo J. O. (2006) First Polarimetric Measurements and Modeling of the Paschen-Back Effect in CaH Transitions, Astrophysical Journal, Letters, 649:L49-L52
- Bianda M., Benz A., Stenflo J. O., Küveler G., Ramelli R. (2005) Absence of linear polarization in Hα emission of solar flares, Astronomy and Astrophysics, 434:1183-1189
- Stenflo J. O., Gandorfer A., Holzreuter R., Gisler D., Keller C., Bianda M. (2002) Spatial mapping of the Hanle and Zeeman effects on the Sun, Astronomy and Astrophysics, 389:314-324
- Bianda M., Stenflo J. O., Solanki S. (1999) Hanle effect observations with the CaI 4227 Å line, Astronomy and Astrophysics, 350:1060-1070
- Bianda M., Solanki S., Stenflo J. O. (1998) Hanle depolarisation in the solar chromosphere, Astronomy and Astrophysics, 331:760-770
- Bianda M., Stenflo J. O., Solanki S. (1998) Hanle diagnostics of solar magnetic fields: the SrII 4078 Å line, Astronomy and Astrophysics, 337:565-578
- Stenflo J. O., Bianda M., Keller C., Solanki S. (1997) Center-to-limb variation of the second solar spectrum., Astronomy and Astrophysics, 322:985-994
Book (2)
- Stenflo J. O., Nagendra K. N., Qu Q., Sampoorna M. (2013) Proceedings of the Solar Polarization Workshop 7 (SPW7). Astronomical Society of the Pacific Conference Series
- Ramelli R., Stenflo J. O., Shalabiea O., Saleh I. (2006) Proceedings of the International Symposium on Solar Physics and Solar Eclipses (SPSE 2006). Symposium held at Waw an Namos, Libya
Article in conference proceedings (42)
- Ramelli R., Bianda M., Setzer M., Enegelhard M., Paglia F., Stenflo J. O., Küveler G., Plewe R. (2019) Atlas of the Solar Intensity Spectrum and its Center-to-Limb Variation. Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific Conference Series
- Sampoorna M., Nagendra K., Frisch H., Stenflo J. O. (2019) Effects of Angle-Dependent Partial Frequency Redistribution on Polarized Line Profiles. Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific Conference Series
- Sampoorna M., Nagendra K., Sowmya K., Stenflo J. O., Anusha L. (2019) Polarized Line Formation with Incomplete Paschen-Back Effect and Partial Frequency Redistribution. Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific Conference Series
- Stenflo J. O. (2016) The Sun's spectrally resolved center-to-limb variation. AAS/Solar Physics Division Meeting. AAS/Solar Physics Division Meeting
- Smitha H., Nagendra K., Stenflo J. O., Bianda M., Sampoorna M., Ramelli R. (2015) A revisit to model the Cr i triplet at 5204-5208 Å and the Ba ii D2 line at 4554 Å in the Second Solar Spectrum. Polarimetry. IAU Symposium
- Setzer M., Engelhard M., Ramelli R., Stenflo J. O., Bianda M., Küveler G., Plewe R. (2015) Atlas of the center to limb variation of the solar intensity spectrum. IAU General Assembly
- Stenflo J. O. (2015) Coherence structure of D1 scattering. Polarimetry. IAU Symposium
- Supriya H., Smitha H., Nagendra K., Stenflo J. O., Bianda M., Ravindra B., Ramelli R., Anusha L. (2015) Modeling the center-to-limb variation of the Ca i 4227 Å line using FCHHT models. Polarimetry. IAU Symposium
- Sowmya K., Nagendra K., Sampoorna M., Stenflo J. O. (2015) Paschen-Back effect involving atomic fine and hyperfine structure states. Polarimetry. IAU Symposium
- Ramelli R., Bianda M., Berdyugina S., Kleint L., Goroberts A., Stenflo J. O., Belluzzi L. (2015) Synoptic program to measure the evolution of the photospheric hidden magnetic field during a solar cycle. IAU General Assembly. Honolulu
- Demidov M., Stenflo J. O., Bianda M., Ramelli R. (2014) Conversion of the 6302 / 6301 Stokes V Line Ratio to the 5250 / 5247 Ratio for the Diagnostics of Quiet-Sun Magnetic Fields. Solar Polarization 7. Astronomical Society of the Pacific Conference Series
- Stenflo J. O. (2014) Nature of Quiet-Sun Magnetic Fields. Solar Polarization 7. Astronomical Society of the Pacific Conference Series
- Bianda M., Ramelli R., Gisler D., Stenflo J. O. (2014) Solar Cycle Variations of the Second Solar Spectrum. Solar Polarization 7. Astronomical Society of the Pacific Conference Series
- Smitha H., Nagendra K., Stenflo J. O., Sampoorna M. (2014) The Role of Quantum Interference and Partial Redistribution in the Solar Ba II D2 4554 Å Line. Solar Polarization 7. Astronomical Society of the Pacific Conference Series
- Bianda M., Ramelli R., Gisler D., Stenflo J. O., Defilippis I. (2013) Absolute calibration in solar scattering polarization measurements with ZIMPOL. Calibration workshop. Zurich
- Ramelli R., Bianda M., Stenflo J. O., Gisler D. (2013) IRSOL observing programs and interactions with data collected by space missions.. 1st SOLARNET – 3rd EAST/ATST meeting, “Synergies between ground and space based solar research”. Oslo
- Stenflo J. O. (2013) Nature of the solar dynamo at small scales. Solar and Astrophysical Dynamos and Magnetic Activity. IAU Symposium
- Bianda M., Ramelli R., Stenflo J. O., Berdyugina S., Gisler D., Defilippis I., Bello González N. (2013) The project of installing a ZIMPOL 3 polarimeter at GREGOR in Tenerife
- Frisch H., Anusha L., Bianda M., Holzreuter R., Nagendra K., Ramelli R., Sampoorna M., Smitha H., Stenflo J. O. (2012) Forward-scattering Hanle effect in the solar Ca i 4227 Å line. EAS Publications Series. EAS Publications Series
- Anusha L., Stenflo J. O., Frisch H., Bianda M., Holzreuter R., Nagendra K., Sampoorna M., Ramelli R. (2011) Linear Polarization of the Solar Ca I 4227 Å Line: Modeling with Radiative Transfer and Last Scattering Approximation. Solar Polarization 6. Astronomical Society of the Pacific Conference Series
- Bianda M., Ramelli R., Stenflo J. O., Anusha L., Nagendra K., Sampoorna M., Holzreuter R., Frisch H. (2011) Observations of the solar Ca I 4227 Å line. Solar Polarization 6. Astronomical Society of the Pacific Conference Series
- Stenflo J. O. (2010) Probability distribution functions for solar and stellar magnetic fields. Solar and Stellar Variability: Impact on Earth and Planets. IAU Symposium
- Stenflo J. O. (2010) Probability distribution functions for the Sun's magnetic field
- Ramelli R., Balemi S., Bianda M., Defilippis I., Gamma L., Hagenbuch S., Rogantini M., Steiner O., Stenflo J. O. (2010) ZIMPOL-3: a powerful solar polarimeter. Ground-based and Airborne Instrumentation for Astronomy III. procspie
- Ramelli R., Balemi S., Bianda M., Defilippis I., Gamma L., Hagenbuch S., Rogantini M., Steiner O., Stenflo J. O. (2010) ZIMPOL-3: a powerful solar polarimeter. SPIE conference “Telecopes and Instrumentation 2010”. San Diego, USA
- Bianda M., Ramelli R., Feller A., Stenflo J. O., Küveler G. (2007) Instrumental developments at the Gregory Coudé Telescope (GCT) at IRSOL. Modern solar facilities - advanced solar science
- Feller A., Ramelli R., Stenflo J. O., Gisler D. (2007) Measurement of the Polarization of the Flash Spectrum during a Total Solar Eclipse. The Physics of Chromospheric Plasmas. Astronomical Society of the Pacific Conference Series
- Bianda M., Ramelli R., Stenflo J. O. (2007) Variation of the second solar spectrum with the solar cycle.
- Feller A., Stenflo J. O., Gisler D., Ramelli R. (2006) Eclipse Instrument to Record the Polarization of the Flash Spectrum. Solar Physics and Solar Eclipses (SPSE 2006)
- Feller A., Ramelli R., Stenflo J. O., Gisler D. (2006) First measurement of the polarization of the flash spectrum during a total solar eclipse. Coimbra Solar Physics Meeting, “The Physics of Chromospheric Plasmas”. Coimbra, Portugal
- Ramelli R., Bianda M., Stenflo J. O., Jetzer P. (2006) Solar Research Programs at IRSOL, Switzerland. Solar Physics and Solar Eclipses (SPSE 2006)
- Bianda M., Ramelli R., Trujillo Bueno J., Stenflo J. O. (2006) Spectro-Polarimetric Observations of Filaments in Hα and He D3. Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific Conference Series
- Ramelli R., Bianda M., Trujillo Bueno J., Merenda L., Stenflo J. O. (2006) Spectro-Polarimetry of Solar Prominences. Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific Conference Series
- Bianda M., Ramelli R., Trujillo Bueno J., Stenflo J. O. (2005) Spectropolarimetric observations of filaments in Hα and D3. 4th Solar Polarization Workshop. Boulder, Colorado, USA
- Ramelli R., Bianda M., Trujillo Bueno J., Merenda L., Stenflo J. O. (2005) Spectropolarimetric Observations of Prominences and Spicules. Conference on “Chromospheric and Coronal Magnetic Fields”. Katlenburg-Lindau, Germany
- Ramelli R., Bianda M., Trujillo Bueno J., Merenda L., Stenflo J. O. (2005) Spectropolarimetric Observations of Prominences and Spicules, and Magnetic Field Diagnostics. Chromospheric and Coronal Magnetic Fields. ESA Special Publication
- Ramelli R., Bianda M., Trujillo Bueno J., Merenda L., Stenflo J. O. (2005) Spectropolarimetry of Solar Prominences”. 4th Solar Polarization Workshop. Boulder, Colorado, USA
- Bianda M., Stenflo J. O., Gandorfer A., Gisler D. (2003) Enigmatic Magnetic Field Effects in the Scattering Polarization of the Ca I 4227 Å line. Current Theoretical Models and Future High Resolution Solar Observations: Preparing for ATST. Astronomical Society of the Pacific Conference Series
- Bianda M., Stenflo J. O., Gandorfer A., Gisler D., Küveler G. (2003) Search for Impact Polarization in Hα flares. Solar Polarization. Astronomical Society of the Pacific Conference Series
- Bianda M., Stenflo J. O. (2001) Hanle Effect Observations in the UV with the Mg I Multiplet at 3829 - 3838 Å. Advanced Solar Polarimetry -- Theory, Observation, and Instrumentation. Astronomical Society of the Pacific Conference Series
- Cacciani A., Rapex P., Dolci M., Reale F., Landi E., Stenflo J. O., Bianda M., Moses D. (2001) Stokes profile measurements in each sodium D-line using single and dual band magneto-optical filters on board Solar Orbiter. Solar encounter. Proceedings of the First Solar Orbiter Workshop. ESA Special Publication
- Bianda M., Stenflo J. O., Solanki S. (1999) Observations of the Hanle effect in the CaI 4227 and SrII 4078 Å lines. Polarization. Astrophysics and Space Science Library
