Search Results - "Brown, Jonathan S."
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A recalibration of strong-line oxygen abundance diagnostics via the direct method and implications for the high-redshift universe
Published in Monthly notices of the Royal Astronomical Society (11-05-2016)“…We use direct method oxygen abundances in combination with strong optical emission lines, stellar masses (M ⋆), and star formation rates (SFRs) to recalibrate…”
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Journal Article -
2
The Largest M Dwarf Flares from ASAS-SN
Published in The Astrophysical journal (10-05-2019)“…The All-sky Automated Survey for Supernovae (ASAS-SN) is the only project in existence to scan the entire sky in optical light approximately every day,…”
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3
THE BLACK HOLE MASS OF NGC 4151. II. STELLAR DYNAMICAL MEASUREMENT FROM NEAR-INFRARED INTEGRAL FIELD SPECTROSCOPY
Published in The Astrophysical journal (10-08-2014)“…We present a revised measurement of the mass of the central black hole (M sub(BH)) in the Seyfert 1 galaxy NGC 4151. When our models attempt to fit both the…”
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4
Double-peaked Balmer Emission Indicating Prompt Accretion Disk Formation in an X-Ray Faint Tidal Disruption Event
Published in The Astrophysical journal (01-11-2020)“…We present the multiwavelength analysis of the tidal disruption event (TDE) AT 2018hyz (ASASSN-18zj). From follow-up optical spectroscopy, we detect the first…”
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Journal Article -
5
Hello darkness my old friend: the fading of the nearby TDE ASASSN-14ae
Published in Monthly notices of the Royal Astronomical Society (11-11-2016)“…We present late-time optical spectroscopy taken with the Large Binocular Telescope's Multi-Object Double Spectrograph, an improved All-Sky Automated Survey for…”
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6
DIRECT METHOD GAS-PHASE OXYGEN ABUNDANCES OF FOUR LYMAN BREAK ANALOGS
Published in The Astrophysical journal (10-09-2014)“…We measure the gas-phase oxygen abundances in four Lyman break analogs using auroral emission lines to derive direct abundances. The direct method oxygen…”
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7
THE ERUPTION OF THE CANDIDATE YOUNG STAR ASASSN-15QI
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT Outbursts on young stars are usually interpreted as accretion bursts caused by instabilities in the disk or the star-disk connection. However, some…”
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8
Discovery and Early Evolution of ASASSN-19bt, the First TDE Detected by TESS
Published in The Astrophysical journal (01-10-2019)“…We present the discovery and early evolution of ASASSN-19bt, a tidal disruption event (TDE) discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN)…”
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9
ON THE OFFSET OF BARRED GALAXIES FROM THE BLACK HOLE M BH -σ RELATIONSHIP
Published in The Astrophysical journal (01-12-2013)Get full text
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10
On the offset of barred galaxies from the black hole M {sub BH}-σ relationship
Published in The Astrophysical journal (01-12-2013)“…We use collisionless N-body simulations to determine how the growth of a supermassive black hole (SMBH) influences the nuclear kinematics in both barred and…”
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Journal Article -
11
ON THE OFFSET OF BARRED GALAXIES FROM THE BLACK HOLE M sub(BH)-[sigma] RELATIONSHIP
Published in The Astrophysical journal (01-12-2013)“…We use collisionless N-body simulations to determine how the growth of a supermassive black hole (SMBH) influences the nuclear kinematics in both barred and…”
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Journal Article -
12
Finite $W$-algebra invariants via Lax type operators
Published 11-06-2024“…We use variations on Lax type operators to find explicit formulas for certain elements of finite $W$-algebras. These give a complete set of generators for all…”
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13
Finite dimensional irreducible representations of finite W-algebras associated to even multiplicity nilpotent orbits in classical Lie algebras
Published in Mathematische Zeitschrift (01-02-2013)“…We consider finite W -algebras associated to even multiplicity nilpotent elements in classical Lie algebras. We give a classification of finite dimensional…”
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14
Genetic Manipulation in Humans as a Matter of Rawlsian Justice
Published in Social theory and practice (01-01-2001)“…Brown argues that John Rawls' theory as it stands does not offer satisfactory answers to questions about how to regulate genetic manipulations. Brown explains…”
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15
Reverberation Mapping of Optical Emission Lines in Five Active Galaxies
Published in The Astrophysical journal (10-05-2017)“…We present the first results from an optical reverberation mapping campaign executed in 2014 targeting the active galactic nuclei (AGNs) MCG+08-11-011, NGC…”
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16
Surveying Transient Host Galaxies With ASAS-SN
Published 01-01-2018“…The technological advances of the recent years have allowed for the proliferation of relatively inexpensive charge-coupled devices (CCDs) and other imaging…”
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Dissertation -
17
A Drinfeld presentation for the twisted Yangian $Y_3
Published 21-01-2016“…We define the Drinfeld generators for $Y_3^+$, the twisted Yangian associated to the Lie algebra $\mathfrak{so}_3(\mathbb{C})$. This allows us to define…”
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Journal Article -
18
A Recalibration of Strong Line Oxygen Abundance Diagnostics via the Direct Method and Implications for the High Redshift Universe
Published 02-02-2016“…We use direct method oxygen abundances in combination with strong optical emission lines, stellar masses ($M_{\star}$), and star formation rates (SFRs) to…”
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Journal Article -
19
Double-Peaked Balmer Emission Indicating Prompt Accretion Disk Formation in an X-Ray Faint Tidal Disruption Event
Published 01-11-2020“…We present the multi-wavelength analysis of the tidal disruption event (TDE) AT~2018hyz (ASASSN-18zj). From follow-up optical spectroscopy, we detect the first…”
Get full text
Journal Article -
20
The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151
Published 27-08-2020“…We derive a distance of $15.8\pm0.4$ Mpc to the archetypical Seyfert 1 galaxy NGC 4151 based on the near-infrared Cepheid Period-Luminosity relation and new…”
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Journal Article