References of "Nazé, Yaël"
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See detailRecords stellaires
Nazé, Yaël ULg

Article for general public (2006)

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See detailRévélations cosmiques - l'astronomie TeV prend son envol
Nazé, Yaël ULg

Article for general public (2006)

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See detailLive fast, die young
Nazé, Yaël ULg

Article for general public (2006)

Massive stars: How far away are they? How do they form? What is a star's maximum mass? What role did they play after the big bang? How do massive binaries form? Can planets form around massive stars? What ... [more ▼]

Massive stars: How far away are they? How do they form? What is a star's maximum mass? What role did they play after the big bang? How do massive binaries form? Can planets form around massive stars? What role do rotation and magnetic fields play? How do massive single and binaries evolve? How do they die? [less ▲]

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See detailNew light on the peculiar star HD108
Nazé, Yaël ULg; Barbieri, C.; Segafredo, A. et al

in Information Bulletin on Variable Stars (2006), 5693

HD 108 is a peculiar massive star of type Of?p, which present recurrent line profile variations. Archival data confirm the very long (50-60 yr) period of this star. Recent data show that the minimum state ... [more ▼]

HD 108 is a peculiar massive star of type Of?p, which present recurrent line profile variations. Archival data confirm the very long (50-60 yr) period of this star. Recent data show that the minimum state is not yet reached. [less ▲]

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See detailL'astronomie au féminin
Nazé, Yaël ULg

Book (2006)

Qui détient le record des découvertes de comètes ? Une femme. Qui a permis de comprendre comment est organisée la population des étoiles ? Une femme. Qui a découvert la loi permettant d'arpenter l'Univers ... [more ▼]

Qui détient le record des découvertes de comètes ? Une femme. Qui a permis de comprendre comment est organisée la population des étoiles ? Une femme. Qui a découvert la loi permettant d'arpenter l'Univers, a trouvé des phares dans l'espace, a compris le fonctionnement des forges stellaires et a bouleversé notre vision de l'Univers ? Encore et toujours une femme... Pourtant, quand on doit citer un astronome -- historique -- au hasard, on pense le plus souvent -- des hommes : Ptolémée, Galilée, Copernic ou, plus prè de nous par exemple, Hubble. Certes, au cours des siècles, les femmes n'ont guère eu accè aux sciences en général et -- l'astronomie en particulier mais ce n'est pas une raison pour croire en l'absence totale de contributions dues au beau sexe ! C'est ce que dévoile ici l'auteur. Loin de toute forme de féminisme enragé, on suivra le parcours de quelques scientifiques importantes qui ont par hasard en commun une même particularité : leur sexe. [less ▲]

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See detailLe ciel selon XMM-Newton
Rauw, Grégor ULg; Nazé, Yaël ULg

Article for general public (2006)

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See detailLa merveilleuse cannibale
Nazé, Yaël ULg

Article for general public (2006)

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See detailThe Peculiar Of?p Stars HD 108 and HD 191612: The X-ray View
Nazé, Yaël ULg; Rauw, Grégor ULg; Walborn, N. R. et al

in The X-ray Universe 2005 (2006, January 01)

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See detailSpectroscopy of Massive Stars
Nazé, Yaël ULg

in Bulletin de la Société Royale des Sciences de Liège (2006), 75

Although rare, massive stars, being the main sources of ionizing radiation, chemical enrichment and mechanical energy in the Galaxy, are the most important objects of the stellar population. This review ... [more ▼]

Although rare, massive stars, being the main sources of ionizing radiation, chemical enrichment and mechanical energy in the Galaxy, are the most important objects of the stellar population. This review presents the many different aspects of the main tool used to study these stars, i.e. spectroscopy. The first part consists in an introduction on these objects and their physical properties (mass, wind, evolution, relation with their environment). Next, the spectral behaviour of single massive stars is investigated, in the visible as well as in the X-ray domain. Finally, the last part of this paper deals with massive binaries, especially those exhibiting a colliding wind phenomenon. [less ▲]

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See detailPhase-resolved observations of a peculiar O star
Nazé, Yaël ULg

Poster (2006)

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See detailAn outreach experience
Nazé, Yaël ULg

in European Planetary Science Congress 2006 (2006)

In our technological world, Science is everywhere and to participate to the public debates, citizens will need some basic scientific notions. Raising awareness of the public in Science is thus always ... [more ▼]

In our technological world, Science is everywhere and to participate to the public debates, citizens will need some basic scientific notions. Raising awareness of the public in Science is thus always worthwhile, even though only a small fraction of the audience will envisage a career in the field. Bringing science to the layman should even be a duty for scientists: we should not forget that we are paid by taxpayers, and are part of a public service; and besides, people tend to reject things that they do not understand - to get support, scientists need to enter the public arena and confront the crowd. Relying on attractive images and a timeless fascination, astronomy is particularly suited to do that. But what should a willing astronomer do to share (his/her) knowledge? There is certainly no definitive answer for that, but a few hints can still be given. Based on personal experience, this talk will present a few tips and things to avoid in three cases: animations (for kids and grown-ups), writing, and talking. [less ▲]

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See detailLe chemin céleste à travers les âges
Nazé, Yaël ULg

Article for general public (2005)

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See detailStars in the eyes, birth of a vocation ?
Nazé, Yaël ULg

in Astrophysics, and How to Attract Young People into Physics (2005, November 01)

It is generally difficult to interest people to sciences, especially physics. However, astronomy has a great power of fascination, and can thus be used to attract people into the scientific world. Here in ... [more ▼]

It is generally difficult to interest people to sciences, especially physics. However, astronomy has a great power of fascination, and can thus be used to attract people into the scientific world. Here in Liège, we are trying to develop several different aspects of astro-education: they will be detailed in this paper. For example, we organize interactive activities for primary schools, and also help high school students to consider a scientific career. Our undergraduate students also benefit from our experience: for example, they have the possibility to observe at a real observatory, they can train at ESA facilities,... The general public is also invited to discover astronomy and, through it, physics, thanks to several specific events. Finally, media, the links between the public and the researchers, are not forgotten: our astro-news service was specifically created for this purpose. [less ▲]

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See detailThe peculiar Of?p stars HD 108 and HD 191612
Nazé, Yaël ULg; Rauw, Grégor ULg; Walborn, N. R. et al

in Massive Stars and High-Energy Emission in OB Associations (2005, November 01)

The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which possess intense emission lines of C III 4647,4650,4651. Recently, two of them, HD 108 and HD 191612, were ... [more ▼]

The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which possess intense emission lines of C III 4647,4650,4651. Recently, two of them, HD 108 and HD 191612, were found to display spectacular line profile variations in the visible domain: these stars apparently alternate between two different spectral states (O6-O8). To discover the origin of this intriguing behaviour, a multiwavelength campaign was undertaken. In this context, the analysis of the X-ray emission is especially important since it provides crucial information for constraining the nature of these peculiar objects and testing conflicting models. We are therefore carrying out high-quality XMM-Newton observations of these stars and we present the results of the data obtained up to now. [less ▲]

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See detailAstrophysics, and how to attract young people into Physics
Nazé, Yaël ULg; Stavinschi, Magda; Vanherck, Martine ULg

Book (2005)

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See detailMassive Stars and High-Energy Emission in OB Associations
Rauw, Grégor ULg; Nazé, Yaël ULg; Blomme, Ronny et al

Book (2005)

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See detailLes couleurs de l'Univers
Nazé, Yaël ULg

Book (2005)

à quoi ressemble la Voie lactée dans l'ultraviolet ? Que cachent les nuages de poussière qui voilent des parties entières du ciel ? Avec la découverte des ondes électromagnétiques (ondes radio ... [more ▼]

à quoi ressemble la Voie lactée dans l'ultraviolet ? Que cachent les nuages de poussière qui voilent des parties entières du ciel ? Avec la découverte des ondes électromagnétiques (ondes radio, ultraviolet, infrarouge, rayons X, gamma), le ciel s'est teinté de nouvelles couleurs, changeant totalement d'aspect, jusqu'à révéler des phénomènes d'une violence insoupçonnée. Les télescopes du monde entier obtiennent maintenant des images d'un univers inconnu que l'auteur nous apprend à comprendre. Riche en anecdotes parfois cocasses sur des découvertes qui doivent parfois au hasard ou Ãà la persévérance obstinée de chercheurs, le livre invite le lecteur à découvrir un monde invisible à l'oeil. Des mystérieux quasars au rayonnement cosmologique, c'est à un voyage au fil de ce nouvel arc-en-ciel que nous convie l'auteur. [less ▲]

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See detailVision cosmique: le futur de l'espace européen
Nazé, Yaël ULg

Article for general public (2005)

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See detailExobiologie et complexité
Javaux, Emmanuelle ULg; Nazé, Yaël ULg

Article for general public (2005)

Detailed reference viewed: 18 (5 ULg)
See detailAstrobiologie et exploration du système solaire
Javaux, Emmanuelle ULg; Lebreton, Jean-Pierre; Chicarro, Augustin et al

Conference given outside the academic context (2005)

Detailed reference viewed: 5 (2 ULg)