Výsledky vyhledávání

A high sensitivity HI survey of the sky at $\mathsf{\delta \le -25 \degr}$

Autor: W. G. L. Pöppel, Esteban Bajaja, P. M. W. Kalberla, R. Morras, Edmundo Marcelo Arnal, J. J. Larrarte

Publikováno v: Astronomy & Astrophysics. 440:767-773

We present the final data release of the high sensitivity lambda 21-cm neutral hydrogen survey of the sky south of delta < -25 degr. A total of 50980 positions lying on a galactic coordinate grid with points spaced by (Delta l, Delta b) = ((0.5 deg)/

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3cb3ac4f3f224eb6c5cf7ebc17761126
https://doi.org/10.1051/0004-6361:20041863

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Ca II K interstellar observations towards early-type disc and halo stars

Autor: H.T. McGillivray, H. R. M. Kay, W. R. J. Rolleston, Philip Dufton, Robert Ryans, Jonathan Smoker, M. Arnal, Donal O'Donoghue, Nigel Hambly, R. Morras, Francis P. Keenan, C. J. Mooney, D. Kilkenny

Publikováno v: Monthly Notices of the Royal Astronomical Society. 346:119-134

We present high-resolution (R = λ/Δλ ∼ 40 000) Ca II K interstellar observations (λ a i r = 3933.66 A) towards 88 mainly B-type stars, of which 74 are taken from the Edinburgh-Cape or Palomar-Green surveys, and 81 have‖b‖ > 25°. The majori

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47fa3faa43fe38f581e569bfaf57ebb3
https://doi.org/10.1046/j.1365-2966.2003.07074.x

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A high sensitivity Hi survey of the sky at δ ≤ -25°

Autor: R. Morras, Esteban Bajaja, Juan Jose Larrarte, Edmundo Marcelo Arnal, W. G. L. Pöppel

Publikováno v: Astronomy and Astrophysics Supplement Series. 142:35-40

This paper reports on a high sensitivity λ 21-cm neutral hydrogen survey of the sky south of δ ≤ -25°. A total of 50980 positions lying on a galactic coordinate grid with points spaced by (Δl, Δb) = (0°.5/cos b, 0°.5), were observed with the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46d3dc57c1c8b12407031f1d69bd83df
https://doi.org/10.1051/aas:2000134

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Multicolour polarization and CO observations towards a dark filament in Musca

Autor: Edmundo Marcelo Arnal, R. Morras, J. R. Rizzo

Publikováno v: Monthly Notices of the Royal Astronomical Society. 265:1-11

Multicolour polarimetry with high sensitivity of stars in the region of the Musca filamentary cloud and 12 CO (J=1→0) observations towards the same area are reported. A lower distance limit of 150 pc is derived for this cloud from a polarization pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82c033b09fa8246d8d726dd0a2887eae
https://doi.org/10.1093/mnras/265.1.1

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The interstellar medium surrounding the Scorpius-Centaurus association revisited

Autor: Wolfgang Pöppel, Edmundo Marcelo Arnal, Esteban Bajaja, R. Morras

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

Aims. We want to make a large-scale study of the morphology, kinematics, and origin of the HI, which surrounds the Sco-Cen association. Methods. We combine our high-sensitivity southern HI survey with the Leiden/Dwingeloo Survey, considering l = 240�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4768d20eff188aa6c412b48a8b017eca
https://www.aanda.org/articles/aa/abs/2010/04/aa11290-08/aa11290-08.html

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Observations towards early-type stars in the ESO-POP survey: II -- searches for intermediate and high velocity clouds

Autor: D. Silva, Peter M. W. Kalberla, Ian Hunter, Francis P. Keenan, Reinhard Hanuschik, Esteban Bajaja, R. Morras, J. V. Smoker, M. Arnal, W. G. L. Poppel, H. M. A. Thompson

We present CaII K and TiII optical spectra of early-type stars taken mainly from the UVES Paranal Observatory Project, plus HI 21-cm spectra from the Vila-Elisa and Leiden-Dwingeloo surveys, which are employed to obtain distances to intermediate and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18abda7842a805fb1811753d6cf57560

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A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell

Autor: Esteban Bajaja, Patricia Reich, Edmundo Marcelo Arnal, R. Morras, W. G. L. Pöppel, Juan Carlos Testori

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

Aims. We look for radio-continuum and atomic neutral hydrogen (Hi) counterparts of the IRAS Vela shell (IVS). Methods. Neutral hydrogen (Hi) and 1410 MHz radio continuum surveys carried out with the Instituto Argentino de Radioastronomía (IAR) dishe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0b85a10561724d98ddcd718d42f8b76
http://sedici.unlp.edu.ar/handle/10915/83048

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The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI

Autor: Esteban Bajaja, R. Morras, D. H. Hartmann, W. G. L. Pöppel, Peter M. W. Kalberla, Edmundo Marcelo Arnal, W. B. Burton

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Astronomy and Astrophysics, 440, 775-782. EDP Sciences
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Astronomy & Astrophysics, 440 (2), 2005

We present the final data release of observations of λ21-cm emission from Galactic neutral hydrogen over the entire sky, merging the Leiden/Dwingeloo Survey (LDS: Hartmann & Burton 1997, Atlas of Galactic Neutral Hydrogen) of the sky north of δ = -

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15cc0690e6a9e57c7e902d19b135b38e
https://doi.org/10.1051/0004-6361:20041864

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Ruprecht 55: An OB association at the edge of our Galaxy

Autor: Rodolfo H. Barbá, Virpi S. Niemela, Guillermo Luis Bosch, Nidia Morrell, R. Morras, Cristina Elisabet Cappa, Guillermo Gimenez de Castro, Pablo Gabriel Ostrov, M. Arnal

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

We present new spectroscopy in the optical range and 21-cm Hi data covering the Ruprecht 55 (Ru 55) field in the Puppis window where several authors have proposed the existence of one (or two) clusters. We have determined new MK spectral types for ab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a9a2de6dba7d2904ef3a7ffacc56cae
http://sedici.unlp.edu.ar/handle/10915/84555

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