Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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1.080 Topics available

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693.932 PEOPLE
693.932 People People

693.932 People

Show results for 693.932 people that are selected by your search filters.

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Naji, M.
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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (8/8 displayed)

  • 2024JWST Calibration Pipelinecitations
  • 2009Dust Around Red Supergiants in the Magellanic Cloudscitations
  • 2006Spitzer MIPS Infrared Imaging of M31: Further Evidence for a Spiral-Ring Composite Structure166citations
  • 2006Modelling Evolved Stars Detected by the Spitzer LMC Survey (SAGE)citations
  • 2003The Exciting Wavelength of Extended Red Emissioncitations
  • 2003Spectropolarimetric study of circumstellar dust around AGB stars and proto-planetary nebulae.citations
  • 2003Search for Blue Photoluminescence by Interstellar Dustcitations
  • 2000Interpretation of Extragalactic Extinction Measurements Using the Maximum Entropy Methodcitations

Places of action

Chart of shared publication
Freeman, W.
1 / 4 shared
Silva, D.
1 / 9 shared
Levesque, E.
1 / 4 shared
Massey, P.
1 / 3 shared
Olsen, K.
1 / 4 shared
Plez, B.
1 / 4 shared
Nordhaus, J.
1 / 6 shared
Clayton, G.
1 / 5 shared
Chatelain, J.
1 / 4 shared
Bright, Stacey N.
1 / 4 shared
Young, E. T.
1 / 1 shared
Engelbracht, C. W.
1 / 3 shared
Gibson, B. K.
1 / 1 shared
Rieke, G. H.
1 / 4 shared
Barmby, P.
1 / 1 shared
Misselt, K. A.
3 / 5 shared
Levine, D. A.
1 / 1 shared
Marleau, F. R.
1 / 1 shared
Hinz, J.
1 / 3 shared
Bailin, J.
1 / 1 shared
Krause, O.
1 / 2 shared
Latter, W. B.
1 / 2 shared
Hines, D. C.
1 / 1 shared
Werner, M. W.
1 / 2 shared
Ashby, M. L. N.
1 / 3 shared
Thilker, D. A.
1 / 1 shared
Noriega-Crespo, A.
1 / 1 shared
Stolovy, S.
1 / 1 shared
Hora, Joseph
1 / 1 shared
Indebetouw, R.
1 / 5 shared
Meade, M.
1 / 2 shared
Blum, R. D.
1 / 1 shared
Whitney, B.
1 / 2 shared
Vijh, U.
1 / 2 shared
Markwick-Kemper, F.
1 / 1 shared
Misselt, K.
1 / 3 shared
Block, M.
1 / 3 shared
For, B.
1 / 2 shared
Engelbracht, C.
1 / 3 shared
Volk, Kevin
1 / 1 shared
Srinivasan, Sundar
1 / 4 shared
Meixner, Margaret
1 / 12 shared
Team, Sage
1 / 1 shared
Leitherer, C.
1 / 3 shared
Babler, B.
1 / 4 shared
Schmidt, G. D.
1 / 1 shared
Bieging, J. H.
1 / 1 shared
Oppenheimer, B. D.
1 / 1 shared
Witt, Adolf
1 / 1 shared
Vijh, Uma
1 / 1 shared
Clayton, G. C.
1 / 3 shared
Wolff, M. J.
1 / 2 shared
Chart of publication period
2024
2009
2006
2003
2000

Co-Authors (by relevance)

  • Freeman, W.
  • Silva, D.
  • Levesque, E.
  • Massey, P.
  • Olsen, K.
  • Plez, B.
  • Nordhaus, J.
  • Clayton, G.
  • Chatelain, J.
  • Bright, Stacey N.
  • Young, E. T.
  • Engelbracht, C. W.
  • Gibson, B. K.
  • Rieke, G. H.
  • Barmby, P.
  • Misselt, K. A.
  • Levine, D. A.
  • Marleau, F. R.
  • Hinz, J.
  • Bailin, J.
  • Krause, O.
  • Latter, W. B.
  • Hines, D. C.
  • Werner, M. W.
  • Ashby, M. L. N.
  • Thilker, D. A.
  • Noriega-Crespo, A.
  • Stolovy, S.
  • Hora, Joseph
  • Indebetouw, R.
  • Meade, M.
  • Blum, R. D.
  • Whitney, B.
  • Vijh, U.
  • Markwick-Kemper, F.
  • Misselt, K.
  • Block, M.
  • For, B.
  • Engelbracht, C.
  • Volk, Kevin
  • Srinivasan, Sundar
  • Meixner, Margaret
  • Team, Sage
  • Leitherer, C.
  • Babler, B.
  • Schmidt, G. D.
  • Bieging, J. H.
  • Oppenheimer, B. D.
  • Witt, Adolf
  • Vijh, Uma
  • Clayton, G. C.
  • Wolff, M. J.
OrganizationsLocationPeople

article

Spectropolarimetric study of circumstellar dust around AGB stars and proto-planetary nebulae.

  • Schmidt, G. D.
  • Bieging, J. H.
  • Oppenheimer, B. D.
  • Misselt, K. A.
  • Gordon, Karl
Abstract

We have used the Steward Observatory 2.3 m telescope with the SPECPOL spectropolarimeter to observe selected AGB and post-AGB stars (including R CrB) and several proto-planetary nebulae (PPNe). The spectra cover 4500 - 8500Å with 13Å resolution, in total and linearly polarized flux, and position angle of linear polarization. Multi-epoch observations of several objects show variability in the polarized spectra. Spectra near maximum and minimum light for the AGB stars imply significant changes in the dust envelopes over the light cycle. R CrB was observed at normal intensity and near a deep minimum, with very different polarized spectra at the two epochs. To interpret these data, we use the Monte Carlo dust scattering code of Gordon, Misselt, et al. (2001, ApJ, 551, 269; 551, 277) to model aspects of the observed polarized spectra. A range of grain sizes and compositions (graphite, amorphous carbon, or silicates) are used in the models. We present preliminary results of models for the PPNe assuming axisymmetric dust distributions, also using constraints from other observations, e.g., high resolution images and integrated spectral energy distributions. We discuss the constraints on the dust distributions, compositions, and grain sizes set by comparison of these models with our spectropolarimetry data. This work is supported by National Science Foundation grant AST99-87408 to the University of Arizona.

Topics
  • impedance spectroscopy
  • amorphous
  • Carbon
  • grain
  • grain size