Searching for molecular outflows in Hyper-Luminous Infrared Galaxies

We present constraints on the molecular outflows in a sample of five Hyper-Luminous Infrared Galaxies using Herschel observations of the OH doublet at 119 {\mu}m. We have detected the OH doublet in three cases: one purely in emission and two purely in absorption. The observed emission profile has a significant blueshifted wing suggesting the possibility of tracing an outflow. Out of the two absorption profiles, one seems to be consistent with the systemic velocity while the other clearly indicates the presence of a molecular outflow whose maximum velocity is about ~1500 km/s. Our analysis shows that this system is in general agreement with previous results on Ultra-luminous Infrared Galaxies and QSOs, whose outflow velocities do not seem to correlate with stellar masses or starburst luminosities (star formation rates). Instead the galaxy outflow likely arises from an embedded AGN.Comment: Accepted for publication in MNRAS. 13 pages, 11 figures, 4 table

Caracterização de germoplasma de jaqueira em Pernambuco por meio de descritos agronômicos.

Anais do 1° Simpósio da Rede de Recursos Genéticos Vegetais do Nordeste (I RGVNE), Cruz das Almas, nov. 2013

Uso do meio Roswell Park Memorial Institute como conservante de córneas de camundongos Swiss

As células do endotélio da córnea apresentam a importante função de bomba e barreira, mantendo assim a córnea transparente. Portanto, o propósito deste estudo foi investigar o meio de cultura de tecidos RPMI como forma de preservação de córneas de camundongos mantidas sob refrigeração. Imediatamente após a retirada do meio de preservação, as córneas foram processadas para microscopia de luz e eletrônica de varredura para análise da integridade e forma da célula endotelial. As córneas tornaram-se inviáveis a partir do dia 4 de conservação, apresentando alterações morfológicas, sinais de morte celular e espessura estromal aumentada, indicando edema importante. Conclui-se que o meio RPMI não é viável para conservação de córneas com a finalidade de ceratoplastia penetrante, embora se acredite que, por se manter estéril, a córnea poderá ser utilizada para enxertos lamelares

An infrared study of the double nucleus in NGC3256

We present new resolved near and mid-IR imaging and N-band spectroscopy of the two nuclei in the merger system NGCA3256, the most IR luminous galaxy in the nearby universe. The results from the SED fit to the data are consistent with previous estimates of the amount of obscuration towards the nuclei and the nuclear star formation rates. However, we also find substantial differences in the infrared emission from the two nuclei which cannot be explained by obscuration alone. We conclude that the northern nucleus requires an additional component of warm dust in order to explain its properties. This suggests that local starforming conditions can vary significantly within the environment of a single system.Comment: Accepted for publication (MNRAS

Introducing Optics in the Kindergarten

Introducing Optics in the Kindergarteninfo:eu-repo/semantics/publishedVersio

Dissimilaridade entre acessos de jaqueira (Artocarpus heterophyllus Lam.) com base em características de fruto.

Anais do 1º Simpósio da Rede de Recursos Genéticos Vegetais do Nordeste (I RGVNE), Cruz das Almas, nov. 2013