Search Results - "Teodoro, Mairan"
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Eta Carinae: The Dissipating Occulter Is an Extended Structure
Published in The Astrophysical journal (01-09-2023)“…Abstract Previous Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) longslit observations of Eta Carinae ( η Car) identified numerous…”
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The Long-term Spectral Changes of Eta Carinae: Are they Caused by a Dissipating Occulter as Indicated by cmfgen Models?
Published in The Astrophysical journal (01-09-2023)“…Abstract Eta Carinae ( η Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has…”
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The fossil wind structures of Eta Carinae: changes across one 5.54-yr cycle
Published in Monthly notices of the Royal Astronomical Society (01-11-2016)“…Eta Carinae, the closest, active, massive binary containing a highly unstable Luminous Blue Variable, exhibits expanding, compressed wind shells, seen in…”
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X-RAY EMISSION FROM ETA CARINAE NEAR PERIASTRON IN 2009. I. A TWO-STATE SOLUTION
Published in The Astrophysical journal (14-03-2014)Get full text
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The orbital kinematics of eta Carinae over three periastra with a possible detection of the elusive secondary's motion
Published 30-12-2022“…The binary eta Carinae is the closest example of a very massive star, which may have formed through a merger during its Great Eruption in the mid-nineteenth…”
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The orbital kinematics of η Carinae over three periastra with a possible detection of the elusive secondary’s motion
Published in Monthly notices of the Royal Astronomical Society (01-03-2023)“…ABSTRACT The binary η Carinae is the closest example of a very massive star, which may have formed through a merger during its Great Eruption in the mid-19th…”
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X-ray emission from η Carinae near periastron in 2009. I. A two-state solution
Published in The Astrophysical journal (01-04-2014)“…X-ray emission from the supermassive binary system η Car declines sharply around periastron. This X-ray minimum has two distinct phases—the lowest flux phase…”
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To v ∞ and beyond! The He i absorption variability across the 2014.6 periastron passage of η Carinae
Published in Monthly notices of the Royal Astronomical Society (21-09-2016)Get full text
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9
The fossil wind structures of Eta Carinae: changes across on 5.54-year cycle
Published 22-08-2016“…Eta Carinae, the closest, active, massive binary containing a highly unstable LBV, exhibits expanding, compressed wind shells, seen in emission, that are…”
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10
X-ray Emission from Eta Carinae near Periastron in 2009 I: A Two State Solution
Published 23-01-2014“…X-ray emission from the supermassive binary system Eta Carinae declines sharply around periastron. This X-ray minimum has two distinct phases - the lowest flux…”
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To v[infinity] and beyond! The He?i absorption variability across the 2014.6 periastron passage of [eta] Carinae
Published in Monthly notices of the Royal Astronomical Society (21-09-2016)“…We have monitored the massive binary star ... Carinae with the CTIO/Small and Moderate Aperture Research Telescope System 1.5 m telescope and CHIRON…”
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12
To v infinity and beyond! The He?i absorption variability across the 2014.6 periastron passage of eta Carinae
Published in Monthly notices of the Royal Astronomical Society (01-09-2016)“…We have monitored the massive binary star ... Carinae with the CTIO/Small and Moderate Aperture Research Telescope System 1.5 m telescope and CHIRON…”
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13
Constraints on decreases in Eta Carinae's mass loss from 3D hydrodynamic simulations of its binary colliding winds
Published 01-10-2013“…Recent work suggests that the mass-loss rate of the primary star (Eta A) in the massive colliding wind binary Eta Carinae dropped by a factor of 2-3 between…”
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X-RAY EMISSION FROM ETA CARINAE NEAR PERIASTRON IN 2009.I. A TWO-STATE SOLUTION
Published in The Astrophysical journal (01-04-2014)“…X-ray emission from the supermassive binary system [eta] Car declines sharply around periastron. This X-ray minimum has two distinct phases-the lowest flux…”
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15
A simple and reusable bilayer membrane-based microfluidic device for the study of gradient-mediated bacterial behaviors
Published in Biomicrofluidics (01-07-2017)“…We have developed a user-friendly microfluidic device for the study of gradient-mediated bacterial behaviors, including chemotaxis. This device rapidly…”
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Bona-fide, strong-variable galactic Luminous Blue Variable stars are fast rotators: detection of a high rotational velocity in HR Carinae
Published 24-09-2009“…Astrophys.J.705:L25-L30,2009 We report optical observations of the Luminous Blue Variable (LBV) HR Carinae which show that the star has reached a visual…”
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Detection of high-velocity material from the wind-wind collision zone of Eta Carinae across the 2009.0 periastron passage
Published 23-03-2010“…We report near-IR spectroscopic observations of the Eta Carinae massive binary system during 2008-2009 using VLT/CRIRES. We detect a strong, broad absorption…”
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Eta Carinae: the dissipating occulter is an extended structure
Published 22-05-2023“…Previous STIS long-slit observations of Eta Carinae identified numerous absorption features in both the stellar spectrum, and in the adjacent nebular spectra,…”
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Extinction law in the range 0.4-4.8 $\mu$m and the 8620 $\AA$ DIB towards the stellar cluster Westerlund 1
Published 15-07-2016“…The young stellar cluster Westerlund 1 (Wd 1: $l$=339.6$^\circ$, b=$-$0.4$^\circ$) is one of the most massive in the local Universe, but accurate parameters…”
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To $v_\infty$ and beyond! The He I absorption variability across the 2014.6 periastron passage of $\eta$ Carinae
Published 11-06-2016“…We have monitored the massive binary star $\eta$ Carinae with the CTIO/SMARTS 1.5~m telescope and CHIRON spectrograph from the previous apastron passage of the…”
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