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Accretion signatures in the X-shooter spectrum of the substellar companion to SR12

Autor: Santamaría-Miranda, Alejandro, Cáceres, Claudio, Schreiber, Matthias R., Hardy, Adam, Bayo, Amelia, Parsons, Steven G., Gromadzki, Mariusz, Villegas, Aurora Belén Aguayo

Publikováno v: 2018MNRAS.475.2994S

About a dozen substellar companions orbiting young stellar objects or pre-main sequence stars at several hundred au have been identified in the last decade. These objects are interesting both due to the uncertainties surrounding their formation, and

Externí odkaz: http://arxiv.org/abs/1712.09297

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The Detection of Dust around NN Ser

Autor: Hardy, Adam, Schreiber, Matthias R., Parsons, Steven G., Caceres, Claudio, Brinkworth, Carolyn, Veras, Dimitri, Gaensicke, Boris T., Marsh, Thomas R., Cieza, Lucas

Eclipse timing variations observed from the post common-envelope binary (PCEB) NN Ser offer strong evidence in favour of circumbinary planets existing around PCEBs. If real, these planets may be accompanied by a disc of dust. We here present the ALMA

Externí odkaz: http://arxiv.org/abs/1604.05808

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Detached cataclysmic variables are crossing the orbital period gap

Autor: Zorotovic, Monica, Schreiber, Matthias R., Parsons, Steven G., Gänsicke, Boris T., Hardy, Adam, Agurto-Gangas, Carolina, Gómez-Morán, Ada Nebot, Rebassa-Mansergas, Alberto, Schwope, Axel D.

A central hypothesis in the theory of cataclysmic variable (CV) evolution is the need to explain the observed lack of accreting systems in the ~2-3 h orbital period range, known as the period gap. The standard model, disrupted magnetic braking (DMB),

Externí odkaz: http://arxiv.org/abs/1601.07785

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On the nature of the tertiary companion to FW Tau: ALMA CO observations and SED modeling

Autor: Caceres, Claudio, Hardy, Adam, Schreiber, Matthias R., Canovas, Hector, Cieza, Lucas A., Williams, Jonathan P., Hales, Antonio, Pinte, Christophe, Menard, Francois, Wahhaj, Zahed

It is thought that planetary mass companions may form through gravitational disk instabilities or core accretion. Identifying such objects in the process of formation would provide the most direct test for the competing formation theories. One of the

Externí odkaz: http://arxiv.org/abs/1504.05644

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New midge resistance for Australian grain sorghum

Autor: Hardy, Adam

[Abstract]: The development and commercial release of midge resistant grain sorghum hybrids in Australia has been one of the real success stories of the sorghum industry. Almost all the current commercial sorghum hybrids grown contain a significant b

Externí odkaz: http://eprints.usq.edu.au/archive/00003566/

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