Insektenallergie – Millionen von Arten als Auslöser?

Przybilla, B.; Eben, Ricarda

doi:10.5414/alp31361

Cited by 4 publications

(12 citation statements)

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“…Pathogenic airborne allergens derived from many different kinds of insects can cause disease, particularly of the respiratory tract (25). In central Europe, cockroaches are the main insect source of allergens in the general environment, although allergy can obviously develop to any insect species given sufficient occupational or leisure-time exposure.…”

Section: The Duration Of Specific Immunotherapy • Depends On the Indimentioning

confidence: 99%

Insect Stings

Przybilla¹,

Ruëff²

2012

Deutsches Ärzteblatt International

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Section: The Duration Of Specific Immunotherapy • Depends On the Indimentioning

confidence: 99%

Insect Stings

Przybilla¹,

Ruëff²

2012

Deutsches Ärzteblatt International

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“…The hypervelocity star HE 0437-5439 was spectroscopically identified to be a genuinely young B2 III-IV halo star with mass of ∼ 9 ± 0.8 M ⊙ (Edelmann et al 2005;Bonanos et al 2008;Przybilla et al 2008). Its apparently short lifetime and the large distances from the GC and the Galactic disk make it too young to have traveled from these regions during its lifetime, even with it very high velocity (723 km s −1 ;Edelmann et al 2005) 3 .…”

Section: Rejuvenated Runaway Starsmentioning

confidence: 99%

“…Such velocity would be comparable to the escape velocity from the the most massive star participating in the encounter. If HE 0437-5439 was ejected from the LMC, it would require an ejection velocity of > 900 km s −1 in order to acquire its current position during its lifetime Przybilla et al 2008). For this to happen HE 0437-5439 would need to encounter stars more massive than itself.…”

Section: Ruling Out Some Possible Dynamical Origins Of He 0437-5439 F...mentioning

confidence: 99%

“…Recently Bonanos et al (2008) and Przybilla et al (2008) have found the metallicity of the HVS HE 0437-5439 to be low relative to solar metallicity. They suggested this as a possible evidence for an LMC origin of this star rather than a Galactic origin.…”

Section: The Metallicity Of He 0437-5439 Does Not Rule Out a Galactic...mentioning

confidence: 99%

“…Therefore, one should compare the metallicity of B type stars such as HE 0437-5439 with large surveys of similar B type stars. Przybilla et al (2008) made a comparison with a single galactic B star and a single LMC B star that may not representative of the large scatter in the abundances shown in larger samples. Bonanos et al (2008) made a comparison with a large B stars survey in the LMC, but for the comparison with the Galactic abundances they took the solar abundances rather that Galactic B stars surveys.…”

Section: The Metallicity Of He 0437-5439 Does Not Rule Out a Galactic...mentioning

confidence: 99%

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Runaway and Hypervelocity Stars in the Galactic Halo: Binary Rejuvenation and Triple Disruption

Perets

2009

ApJ

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Young stars observed in the distant Galactic halo are usually thought to have formed elsewhere, either in the Galactic disk or perhaps the Galactic center, and subsequently ejected at high velocities to their current position. However, some of these stars have apparent lifetimes shorter the required flight time from the Galactic disk/center. We suggest that such stars have evolved in close runaway or hypervelocity binaries. Stellar evolution of such binaries can drive them into mass transfer configurations and even mergers. Such evolution could then rejuvenate them (e.g. blue stragglers) and extend their lifetime after their ejection. The extended lifetimes of such stars could then be reconciled with their flight times to the Galactic halo. We study the possibilities of binary runaway and hypervelocity stars and show that such binaries could have been ejected in triple disruptions and other dynamical interactions with stars or with massive black holes. We show that currently observed "too young" star in the halo could have been ejected from the Galactic disk or the Galactic center and be observable in their current position if they were ejected as binaries. Specifically it is shown that the hypervelocity star HE 0437-5439 could be such a rejuvenated star. Other suggestions for its ejection from the LMC are found to be highly unlikely. Moreover, it is shown that its observed metallicity is most consistent with a Galactic origin and a Galactic center origin can not currently rule out. In addition, we suggest that triple disruptions by the massive black hole in the Galactic center could also capture binaries in close orbits near the MBH, some of which may later evolve to become more massive rejuvenated stars.

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Current World Literature

2009

Current Opinion in Allergy &Amp; Clinical Immunology

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Insektenallergie – Millionen von Arten als Auslöser?

Cited by 4 publications

References 0 publications

Insect Stings

Insect Stings

Runaway and Hypervelocity Stars in the Galactic Halo: Binary Rejuvenation and Triple Disruption

Current World Literature

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