Zobrazeno 1 - 10
of 17
pro vyhledávání: '"R. H. Méndez"'
Publikováno v:
Astrophysics and Space Science. 169:183-188
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c79eb8b11d287ea3283d1d3b45cb5f9d
https://doi.org/10.1007/bf00640708
https://doi.org/10.1007/bf00640708
Autor:
R. H. Méndez
Publikováno v:
Highlights of Astronomy. 10:498-500
Nowadays it is possible to detect planetary nebulae, and measure their [O III] λ5007 fluxes, in many galaxies. Given this information it is relatively straightforward to build the [O III] λ5007 PNLF for any galaxy, because we can always assume all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf1ced1e06222c9f6899b6e7d39c7c2f
https://doi.org/10.1017/s1539299600011874
https://doi.org/10.1017/s1539299600011874
Autor:
R. H. Méndez
Publikováno v:
Highlights of Astronomy ISBN: 9780792335542
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::487ec2bc4b28aef179157087039a4505
https://doi.org/10.1007/978-94-010-9374-3_90
https://doi.org/10.1007/978-94-010-9374-3_90
Autor:
R. H. Méndez
Publikováno v:
Planetary Nebulae ISBN: 9780792324409
A calibration of the nebular intensity of [O III] 5007 (relative to H β ) in terms of stellar bolometric corrections is presented. This calibration (restricted to low-and medium-excitation PN) is based exclusively on the results of non-LTE model atm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d04adecab538e00ca0395aefa4d6fe87
https://doi.org/10.1007/978-94-011-2088-3_21
https://doi.org/10.1007/978-94-011-2088-3_21
Publikováno v:
Proceedings of the International Astronomical Union. 2:493
From a survey of PNs in NGC 300 we obtain its PNLF. We use it to derive a distance estimate, and briefly discuss the PNLF shape.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee35ba42bb76104991fcc1a56afa8a91
https://doi.org/10.1017/s1743921306003905
https://doi.org/10.1017/s1743921306003905
Autor:
R. H. Méndez
Publikováno v:
Symposium - International Astronomical Union. 155:81-81
A calibration of the nebular intensity of [O III] 5007 (relative to Hβ) in terms of stellar bolometric corrections is presented. This calibration (restricted to low- and medium-excitation PN) is based exclusively on the results of non-LTE model atmo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbb908d427b6a5524fc691a27e84e73c
https://doi.org/10.1017/s0074180900170111
https://doi.org/10.1017/s0074180900170111
Publikováno v:
Symposium - International Astronomical Union. 155:82-82
A first step in the accurate quantitative spectroscopic analysis of central stars of PN has been based on fitting the results of NLTE, hydrostatic, plane-parallel model atmosphere calculations to the observed H and He absorption-line profiles in high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::162181fbd2c460504ac74585b22528b8
https://doi.org/10.1017/s0074180900170123
https://doi.org/10.1017/s0074180900170123
Autor:
R. G. Hutton, R. H. Méndez
Publikováno v:
Symposium - International Astronomical Union. 155:486-486
The central stars of the planetary nebulae He 2–131 and He 2–138 show variations in their visual magnitudes, with amplitudes of about 0.1 mag. and time scales of a few hours. This behavior appears to be very similar to that exhibited by the centr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::216b8913d8db228a44103735e6fc0635
https://doi.org/10.1017/s0074180900172195
https://doi.org/10.1017/s0074180900172195
Publikováno v:
Symposium - International Astronomical Union. 155:42-42
During the past decade the achievements in the theory of stellar atmospheres of hot stars combined with improved spectrograph and detector technology at large telescopes have led to a significantly improved knowledge of PN nuclei properties (see Mén
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::323b3623473ea5e6475b97bc3f681921
https://doi.org/10.1017/s0074180900170044
https://doi.org/10.1017/s0074180900170044
Autor:
R. H. Méndez
Publikováno v:
Symposium - International Astronomical Union. 131:261-272
1. Introduction. 2. A list of binary and multiple CSPN. 3. A radial velocity study of CSPN at high spectral resolution. 4. Spectroscopic binaries or intrinsic variables? 5. Concluding remarks.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bb624b84198e2ab0345f06228ff3a65
https://doi.org/10.1017/s0074180900138458
https://doi.org/10.1017/s0074180900138458