Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope
We report on observations of the extended environment of the bright Be star γ -Cas performed using intensity interferometry measurements within its H α emission line. These observations were performed using a modified version of the I2C intensity interferometry instrument installed onto the 1.54 m M...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astronomical Journal |
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| Online Access: | https://doi.org/10.3847/1538-3881/acb142 |
| _version_ | 1797702081485733888 |
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| author | Nolan Matthews Jean-Pierre Rivet David Vernet Mathilde Hugbart Guillaume Labeyrie Robin Kaiser Julien Chabé Clément Courde Olivier Lai Farrokh Vakili Olivier Garde William Guerin |
| author_facet | Nolan Matthews Jean-Pierre Rivet David Vernet Mathilde Hugbart Guillaume Labeyrie Robin Kaiser Julien Chabé Clément Courde Olivier Lai Farrokh Vakili Olivier Garde William Guerin |
| author_sort | Nolan Matthews |
| collection | DOAJ |
| description | We report on observations of the extended environment of the bright Be star γ -Cas performed using intensity interferometry measurements within its H α emission line. These observations were performed using a modified version of the I2C intensity interferometry instrument installed onto the 1.54 m MéO optical metrology telescope and a portable 1 m telescope (T1M). In order to better constrain the extent of the H α envelope, observations were performed for two different positions of the T1M telescope, corresponding to an intermediate and long baselines in which the extended region was partially and fully resolved. We find that the observed data are consistent with past interferometric observations of γ -Cas. These observations demonstrate the capability to equip optical telescopes of different optical designs with intensity interferometry capabilities and illustrate the potential to scale a similar system onto many additional telescopes. |
| first_indexed | 2024-03-12T04:45:01Z |
| format | Article |
| id | doaj.art-6efccd6f5ec34090811613aef73498cb |
| institution | Directory Open Access Journal |
| issn | 1538-3881 |
| language | English |
| last_indexed | 2024-03-12T04:45:01Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astronomical Journal |
| spelling | doaj.art-6efccd6f5ec34090811613aef73498cb2023-09-03T09:29:31ZengIOP PublishingThe Astronomical Journal1538-38812023-01-01165311710.3847/1538-3881/acb142Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable TelescopeNolan Matthews0Jean-Pierre Rivet1https://orcid.org/0000-0002-0289-5851David Vernet2Mathilde Hugbart3Guillaume Labeyrie4Robin Kaiser5https://orcid.org/0000-0001-5194-3680Julien Chabé6https://orcid.org/0000-0001-5514-0690Clément Courde7https://orcid.org/0000-0001-7321-2504Olivier Lai8Farrokh Vakili9Olivier Garde10William Guerin11https://orcid.org/0000-0001-8194-8351Université Côte d’Azur , CNRS, Institut de Physique de France, France ; nolankmatthews@gmail.comUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, UMS Galilée, FranceUniversité Côte d’Azur , CNRS, Institut de Physique de France, France ; nolankmatthews@gmail.comUniversité Côte d’Azur , CNRS, Institut de Physique de France, France ; nolankmatthews@gmail.comUniversité Côte d’Azur , CNRS, Institut de Physique de France, France ; nolankmatthews@gmail.comUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Géoazur, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Géoazur, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, FranceUniversité Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, France2SPOT (Southern Spectrocopic Project Observatory Team), France; Observatoire de la Tourbière—F-38690 Châbons , FranceUniversité Côte d’Azur , CNRS, Institut de Physique de France, France ; nolankmatthews@gmail.comWe report on observations of the extended environment of the bright Be star γ -Cas performed using intensity interferometry measurements within its H α emission line. These observations were performed using a modified version of the I2C intensity interferometry instrument installed onto the 1.54 m MéO optical metrology telescope and a portable 1 m telescope (T1M). In order to better constrain the extent of the H α envelope, observations were performed for two different positions of the T1M telescope, corresponding to an intermediate and long baselines in which the extended region was partially and fully resolved. We find that the observed data are consistent with past interferometric observations of γ -Cas. These observations demonstrate the capability to equip optical telescopes of different optical designs with intensity interferometry capabilities and illustrate the potential to scale a similar system onto many additional telescopes.https://doi.org/10.3847/1538-3881/acb142Emission line starsInterferometersHigh angular resolutionBe stars |
| spellingShingle | Nolan Matthews Jean-Pierre Rivet David Vernet Mathilde Hugbart Guillaume Labeyrie Robin Kaiser Julien Chabé Clément Courde Olivier Lai Farrokh Vakili Olivier Garde William Guerin Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope The Astronomical Journal Emission line stars Interferometers High angular resolution Be stars |
| title | Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope |
| title_full | Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope |
| title_fullStr | Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope |
| title_full_unstemmed | Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope |
| title_short | Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope |
| title_sort | intensity interferometry observations of the hα envelope of γcas with meo and a portable telescope |
| topic | Emission line stars Interferometers High angular resolution Be stars |
| url | https://doi.org/10.3847/1538-3881/acb142 |
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