File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Scopus: eid_2-s2.0-0009174948
- WOS: WOS:A1990DK40100006
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Gravitational lensing by a smoothly variable three-dimensional mass distribution
Title | Gravitational lensing by a smoothly variable three-dimensional mass distribution |
---|---|
Authors | |
Keywords | Gravitational Lenses |
Issue Date | 1990 |
Publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 |
Citation | Astrophysical Journal Letters, 1990, v. 357 n. 1, p. 32-37 How to Cite? |
Abstract | A smooth three-dimensional mass distribution is approximated by a model with multiple thin screens, with surface mass density varying smoothly on each screen. We find that 16 screens are sufficient for a good approximation of the three-dimensional distribution of matter. We also find that in this multiscreen model the distribution of amplifications of single images is dominated by the convergence due to matter within the beam. The shear caused by matter outside the beam has no significant effect. This finding considerably simplifies the modeling of lensing by a smooth three-dimensional mass distribution by effectively reducing the problem to one dimension, as it is sufficient to know the mass distribution along a straight light ray. |
Persistent Identifier | http://hdl.handle.net/10722/150939 |
ISSN | 2023 Impact Factor: 8.8 2023 SCImago Journal Rankings: 2.766 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, MH | en_US |
dc.contributor.author | Paczyński, B | en_US |
dc.date.accessioned | 2012-06-26T06:15:05Z | - |
dc.date.available | 2012-06-26T06:15:05Z | - |
dc.date.issued | 1990 | en_US |
dc.identifier.citation | Astrophysical Journal Letters, 1990, v. 357 n. 1, p. 32-37 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/150939 | - |
dc.description.abstract | A smooth three-dimensional mass distribution is approximated by a model with multiple thin screens, with surface mass density varying smoothly on each screen. We find that 16 screens are sufficient for a good approximation of the three-dimensional distribution of matter. We also find that in this multiscreen model the distribution of amplifications of single images is dominated by the convergence due to matter within the beam. The shear caused by matter outside the beam has no significant effect. This finding considerably simplifies the modeling of lensing by a smooth three-dimensional mass distribution by effectively reducing the problem to one dimension, as it is sufficient to know the mass distribution along a straight light ray. | en_US |
dc.language | eng | en_US |
dc.publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 | en_US |
dc.relation.ispartof | Astrophysical Journal Letters | en_US |
dc.subject | Gravitational Lenses | en_US |
dc.title | Gravitational lensing by a smoothly variable three-dimensional mass distribution | en_US |
dc.type | Article | en_US |
dc.identifier.email | Lee, MH:mhlee@hku.hk | en_US |
dc.identifier.authority | Lee, MH=rp00724 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-0009174948 | en_US |
dc.identifier.volume | 357 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 32 | en_US |
dc.identifier.epage | 37 | en_US |
dc.identifier.isi | WOS:A1990DK40100006 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Lee, MH=7409119699 | en_US |
dc.identifier.scopusauthorid | Paczyński, B=7006739107 | en_US |
dc.identifier.issnl | 2041-8205 | - |