28 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Fundación Ciencias Exactas y NaturalesAR12 papers
- Institute of Astronomy and Space PhysicsAR12 papers
- Universidad de Buenos AiresAR12 papers
- Goddard Space Flight CenterUS6 papers
- University of Maryland, Baltimore CountyUS6 papers
- Columbia UniversityUS5 papers
- Osservatorio Astronomico di PadovaIT5 papers
- University of Wisconsin–MadisonUS5 papers
- Center for Astrophysics Harvard & SmithsonianUS4 papers
- Nicolaus Copernicus Astronomical CenterPL4 papers
- Polish Academy of SciencesPL4 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR3 papers
14 papers
Transient and asymmetric dust structures in the TeV-bright nova RS Oph revealed by spectropolarimetry
Y. Nikolov, G. J. M. Luna, K. A. Stoyanov +4
A long-standing question related to nova eruptions is how these eruptions can lead to the formation of dust despite the ostensibly inhospitable environment for dust within the hot,…
K2 & TESS observations of symbiotic X-ray binaries: GX 1+4 and IGR J16194-2810
G. J. M. Luna
I analyze the K2 and TESS data taken in 2016, 2019 and 2021 of the symbiotic X-ray binaries GX 1+4 and IGR J16194-2810. GX 1+4 consists of a pulsar accreting from a red giant compa…
Taking a break: paused accretion in the symbiotic binary RT Cru
A. Pujol, G. J. M. Luna, K. Mukai +10
Symbiotic binaries sometimes hide their symbiotic nature for significant periods of time. There is mounting observational evidence that in those symbiotics that are powered solely…
Shocks in the outflow of the RS Oph 2021 eruption observed with X-ray gratings
Marina Orio, Ehud Behar, Juan Luna +9
The 2021 outburst of the symbiotic recurrent nova RS Oph was observed with the Chandra High Energy Transmission Gratings (HETG) on day 18 after optical maximum and with XMM-Newton…
Discovery of the most luminous quasar of the last 9 Gyr
Christopher A. Onken, Samuel Lai, Christian Wolf +8
We report the discovery of a bright (g = 14.5 mag (AB), K = 11.9 mag (Vega)) quasar at redshift z = 0.83 -- the optically brightest (unbeamed) quasar at z > 0.4. SMSS J114447.77-43…
NICER monitoring of supersoft X-ray sources
M. Orio, K. Gendreau, M. Giese +9
We monitored four supersoft sources - two persistent ones, CAL 83 and MR Vel, and the recent novae YZ Ret (Nova Ret 2020) and V1674 Her (Nova Her 2021) - with NICER. The two persis…
The Remarkable Spin-down and Ultra-fast Outflows of the Highly-Pulsed Supersoft Source of Nova Hercules 2021
Jeremy J. Drake, Jan-Uwe Ness, Kim L. Page +12
Nova Her 2021 (V1674 Her), which erupted on 2021 June 12, reached naked-eye brightness and has been detected from radio to -rays. An extremely fast optical decline of 2 magnitud…
Expanding Bipolar X-ray Structure After the 2006 Eruption of RS Oph
R. Montez, G. J. M. Luna, K. Mukai +2
We report on the detection and analysis of extended X-ray emission by the {\it Chandra} X-ray Observatory stemming from the 2006 eruption of the recurrent novae RS Oph. The extende…
Breaking the degeneracy in magnetic cataclysmic variable X-ray spectral modeling using X-ray light curves
Diogo Belloni, Claudia V. Rodrigues, Matthias R. Schreiber +12
We present an analysis of mock X-ray spectra and light curves of magnetic cataclysmic variables using an upgraded version of the 3D CYCLOPS code. This 3D representation of the accr…
X-ray Spectra and Light Curves of Cooling Novae and a Nova-Like
Bangzheng Sun, Marina Orio, Andrej Dobrotka +3
We present X-ray observations of novae V2491 Cyg and KT Eri about 9 years post-outburst, of the dwarf nova and post-nova candidate EY Cyg, and of a VY Scl variable. The first three…
Increasing activity in T CrB suggests nova eruption is impending
Gerardo J. M. Luna, J. L. Sokoloski, K. Mukai +1
Estimates of the accretion rate in symbiotic recurrent novae (RNe) often fall short of theoretical expectations by orders of magnitude. This apparent discrepancy can be resolved if…
INTEGRAL view on Cataclysmic Variables and Symbiotic Binaries
Alexander Lutovinov, Valery Suleimanov, Gerardo Juan Manuel Luna +5
Accreting white dwarfs (WDs) constitute a significant fraction of the hard X-ray sources detected by the INTEGRAL observatory. Most of them are magnetic Cataclysmic Variables (CVs)…
Optical spectroscopy and X-ray observations of the D-type symbiotic star EF Aql
K. A. Stoyanov, K. Iłkiewicz, G. J. M. Luna +6
We performed high-resolution optical spectroscopy and X-ray observations of the recently identified Mira-type symbiotic star EF Aql. Based on high-resolution optical spectroscopy o…
Chandra High Energy Transmission Gratings Spectra of V3890 Sgr
Marina Orio, Jeremy J. Drake, Jan-Uwe Ness +13
The recurrent nova (RN) V3890 Sgr was observed during the 7th day after the onset of its most recent outburst, with the Chandra ACIS-S camera and High Energy Transmission Gratings…