#minispike

[lunarsilkscreen]

Stock and Crypto "minispikes"

I'm gonna start with the example of the the guy who put in an order for Bitcoin at 5$ and the order went through when the going price was $50,000.

Numbers not fact checked.

Why does it seem like random spikes (either up or down) happens?

Well, for up-spikes, it's because somebody put in a sell order for that much and it went through, the question is how? Why?

For down-spikes, it's because of a buy order (as bit coin example). And again: how why?

Who would buy/sell at those prices? The answer is: algorithmic trading.

Some people have orders that just need to be filled, price non-withstanding, so when a spike occurs, it means it filled an order when there was no other stocks at the time the trade occured at the price requested.

Some traders are trying to fill a quota of owning a set number of stocks. But others are market makers. Their job is to ensure liquidity of stock.

Yes, after being constantly underfire they actually do have a purpose.

The liquidity is to ensure that stock-lock doesn't happen, and people simply refusing to trade grinds the market to a halt, or worse, holds the stock hostage in a way that buyers will ultimately loose money.

Kinda like the housing market.

It's also why 40% shorts are authorized to market makers.

Their job is to sell people stock that wish to invest, and buy stock from those who wish to sell, and ensure that they don't have to go onto Craigslist to do it.

Does Craigslist have a stock darkpool section?

Anyway, that's why you should always put your stock up for sale for what you think it's actually worth using limit buy/limit sell. It may not trade *now* but if it's worth what you think, or if the stock is drying up, the market makers' duty is to ensure liquidity.

[musesandrebels]

Hello Summer ☀️ #itsofficial #summer #summerstyle #summersolstice #itsofficiallysummer #summeraccessories #summerjewelry #summerstyle #musesandrebels #jewelry #jewelryaddict #jewelrygram #jewelrylover #jewelrylover #jewelrystyle #jewelryshop #monstera #monsteraearrings #minispike #beadbracelets https://www.instagram.com/p/CfGEu-DrgkR/?igshid=NGJjMDIxMWI=

[mhealthyliving]

New vaccine platform: 'Two-one replicon-and-VLP-minispike vaccine' against COVID-19

New vaccine platform: ‘Two-one replicon-and-VLP-minispike vaccine’ against COVID-19

To stop the current SARS-CoV-2 pandemic, vaccines of high quality, safety, and efficacy are required. Scientists of the Paul-Ehrlich-Institut and the Ludwig Maximilian University at Munich have conceived in the laboratory a novel vector vaccine based on the vesicular stomatitis virus (VSV) with only one part of the spike protein as antigen. They have tested the characteristics of this vaccine in…

[makedata]

Ancients by everlookphotography // Dramatic sea stacks off the west coast of South island just north of Motukiekie beach. I'll trip to put a random tip about each photo from now - some may be more useful than others! Tip: I brought minispikes with me to New Zealand this year. The most useful setting to use them was on slick rock like you see in the foreground! ( I didn't really come across any ice in the mountains, just lots of snow)

[gjhuerta]

Simone & Spike #romancat #ilovemycat #lifeisbetterwithacat #notnormal #minispike http://bit.ly/2t36IIb

[bryanwali]

@ruelas537 #pocketpick #minispike #eldiablito #edc #multitool

[happykeks]

#mini #minispike #minicooper #minicoopers #minigermany #minioftheday #minicooperlove #minicooperswag #minicooperworld #minideutschland #minicooperlovers #minicooperfanatic

[musesandrebels]

The perfect gifts for mom #mothersdaygiftguide #mothersday #mothersdaygift #mothersdaygiftideas #giftsforher #giftsformom #giftsformum #jewelrygifts #earrings #monsteraleaf #monsteraearrings #minispike #spikenecklace #modernjewelry #delicatejewelry #jewelrygift #jewelryoftheday #jewelryofinstagram #jewelryofig #jewelryobsessed #whattogetmom #momgifts #momgift https://www.instagram.com/p/Cc18ZHKLZYS/?igshid=NGJjMDIxMWI=

[musesandrebels]

Customizable sterling silver necklaces. Choose your initials and add on a charm like this mink spike. #itsallinthedetails #customjewelry #customnecklace #initialnecklace #initialnecklaces #minispike #charmnecklace #delicatenecklace #delicatenecklaces #jewelryoftheday #jewelryobsessed #jewelryaddict https://www.instagram.com/p/CVlJFgfPpB0/?utm_medium=tumblr

[musesandrebels]

Sometimes the prettiest things are really tiny. This mini aqua colored spike necklace with 14k gold filled chain is super pretty. #tinyjewelry #delicatenecklace #musesandrebels #jewelry #necklaces #necklace #minispike #goldnecklace #spikenecklace #necklaceoftheday #jewelryaddict #jewelrylover #summerjewelry #summernecklace https://www.instagram.com/p/CQe2l-ogklQ/?utm_medium=tumblr

[arxt1]

Dark matter minispike: a significant enhancement of eccentricity for intermediate-mass-ratio-inspirals. (arXiv:1908.10241v1 [astro-ph.HE])

When a stellar massive compact object, such as a black hole (BH), inspirals into an intermediate massive black hole (IMBH), an intermediate-mass-ratio-inspiral (IMRI) system forms. Such kind of systems are important sources for space-based gravitational wave detectors including LISA, Taiji and Tianqin. Dark matter (DM) minispikes may form around IMBHs. We study the effect of dynamical friction against DM minispike on the evolution of eccentric IMRI. For such investigation we construct the dynamical equations which describes the evolution of eccentric IMRI under the effect of dynamical friction. As dynamical friction is large for small velocity, the dissipation of energy near apastron is more than that near periastron. This will greatly enhance the eccentricity. For instance, with an initial semi-latus rectum of $1\rm AU$, even a moderate DM minispike can make the eccentricity grow from $0.3$ to $0.85$. In the extremal case the eccentricity could be enhanced to near $1$. We also study a specific case which corresponds to an IMRI in the center of a globular cluster (GC) and find the eccentricity can keep its value above $0.95$ until the IMRI enters LISA band. These gravitational wave with enhanced eccentricity by DM minispikes can be easly distinguished from that without DM at $10^{-3}\rm Hz$ due to the eccentricity difference. These anticipations can be tested by future space-based GW detectors such as LISA.

from astro-ph.HE updates on arXiv.org https://ift.tt/2ZsgeVd

[arxt1]

Dark matter: an efficient catalyst for intermediate-mass-ratio-inspiral events. (arXiv:1802.03739v2 [gr-qc] UPDATED)

Gravitational waves (GWs) can be produced if a stellar compact object, such as a black hole (BH) or neutron star, inspirals into an intermediate-massive black hole (IMBH) of $(10^3 \sim 10^5)\,M_\odot$. Such a system may be produced in the center of a globular cluster (GC) or a nuclear star cluster (NSC), and is known as an intermediate- or extreme-mass-ratio inspiral (IMRI or EMRI). Motivated by the recent suggestions that dark matter minispikes could form around IMBHs, we study the effect of dynamical friction against DM on the merger rate of IMRIs/EMRIs. We find that the merger timescale of IMBHs with BHs and NSs would be shortened by two to three orders of magnitude. As a result, the event rate of IMRIs/EMRIs are enhanced by orders of magnitude relative to that in the case of no DM minispikes. In the most extreme case where IMBHs are small and the DM minispikes have a steep density profile, all the BH in GCs and NSCs might be exhausted so that the mergers with NSs would dominate the current IMRIs/EMRIs. Our results suggest that the mass function of the IMBHs below $10^4 \,M_\odot$ would bear imprints of the distribution of DM minispikes because these low-mass IMBHs can grow efficiently in the presence of DM minispikes by merging with BHs and NSs. Future space-based GW detectors, like LISA, Taiji, and Tianqin, can measure the IMRI/EMRI rate and hence constrain the distribution of DM around IMBHs.

from astro-ph.HE updates on arXiv.org https://ift.tt/2G8UPam

[arxt1]

Gravitational waves with dark matter minispikes: the combined effect. (arXiv:1711.09706v2 [gr-qc] UPDATED)

It was shown that the dark matter(DM) minihalo around an intermediate mass black hole(IMBH) can be redistributed into a cusp, called the DM minispike. We consider an intermediate-mass-ratio inspiral consisting of an IMBH harbored in a DM minispike with nonannihilating DM particles and a small black hole(BH) orbiting around it. We investigate gravitational waves(GWs) produced by this system and analyze the waveforms with the comprehensive consideration of gravitational pull, dynamical friction and accretion of the minispike and calculate the time difference and phase difference caused by it. We find that for a certain range of frequency, the inspiralling time of the system is dramatically reduced for smaller central IMBH and large density of DM. For the central IMBH with $10^5M_\odot$, the time of merger is ahead, which can be distinguished by LISA, Taiji and Tianqin. We focus on the effect of accretion and compare it with that of gravitational pull and friction. We find that the accretion mass is a small quantity compared to the initial mass of the small BH and the accretion effect is inconspicuous compared with friction. However, the accumulated phase shift caused by accretion is large enough to be detected by LISA, Taiji and Tianqin, which indicate that the accretion effect can not be ignored in the detection of GWs.

from gr-qc updates on arXiv.org http://ift.tt/2AEL3hF

[arxt1]

Dark matter: an efficient catalyst for intermediate-mass-ratio-inspiral events. (arXiv:1802.03739v1 [gr-qc])

The dark matter(DM) minihalo around a massive black hole(MBH) can be redistributed into a cusp, called the DM minispike. A stellar compact object inspirals into such a MBH (from $10^3 \sim 10^5$ solar masses) harbored in a DM minispike, forms an intermediate or extreme mass-ratio inspiral (IMRI or EMRI). The gravitational waves (GWs) produced by such kind of systems will be important sources for space-based interferometers like as LISA, Taiji and Tianqin. We find that due to gravitational pull and dynamical friction of the dark matter minispike, the merger time of IMRIs and EMRIs will be dramatically reduced. Our analysis shows that this effect can greatly increase the event rates of IMRIs for space-based GW detectors comparing with the previous estimation. We point out just based on the IMRI detection events by LISA, Taiji and Tianqin, we can constrain the density profile and physical models of dark matter. Furthermore, due to the faster merger of small objects with intermediate black holes, the faster growing up of black holes will be, and then the mass distribution of the MBHs will be different from the popular opinion.

from astro-ph.HE updates on arXiv.org http://ift.tt/2G8UPam

[arxt1]

Gravitational waves with dark matter minispikes: the combined effect. (arXiv:1711.09706v1 [gr-qc])

It was shown that the dark matter(DM) minihalo around an intermediate mass black hole(IMBH) can be redistributed into a cusp, called the DM minispike. We consider an intermediate-mass-ratio inspirals consisting of an IMBH harbored in a DM minispike with nonannihilating DM particles and a small black hole(BH) orbiting around it. We investigate gravitational waves(GWs) produced by this system and analyze the waveforms with the comprehensive consideration of gravitational pull, dynamical friction and accretion of the minispike and calculate the time difference and phase difference caused by it. We find that for a certain range of frequency, the inspiralling time of the system is dramatically reduced for smaller central IMBH and large density of DM. For the central IMBH with $10^5M_\odot$, the time of merger is ahead, which can be distinguished by LISA, Taiji and Tianqin. We focus on the effect of accretion and compare it with that of gravitational pull and friction. We find that the accretion mass is a small quantity compared to the initial mass of the small BH and the accretion effect is unconspicuous compared with friction. However, the accumulated phase shift caused by accretion is large enough to be detected by LISA, Taiji and Tianqin, which indicate that the accretion effect can not be ignored in the detection of GWs.

from gr-qc updates on arXiv.org http://ift.tt/2AEL3hF